Theory of perception In November 1813
Johann Wolfgang von Goethe invited Schopenhauer to help him on his
Theory of Colours. Although Schopenhauer considered colour theory a minor matter, he accepted the invitation out of admiration for Goethe. Nevertheless, these investigations led him to his most important discovery in epistemology: finding a demonstration for the
a priori nature of causality. Kant openly admitted that it was
Hume's skeptical assault on causality that motivated the critical investigations in
Critique of Pure Reason and gave an elaborate proof to show that causality is
a priori. After
Gottlob Ernst Schulze had made it plausible that Kant had not disproven Hume's skepticism, it was up to those loyal to Kant's project to prove this important matter. The difference between the approaches of Kant and Schopenhauer was this: Kant simply declared that the empirical content of perception is "given" to us from outside, an expression with which Schopenhauer often expressed his dissatisfaction. He, on the other hand, was occupied with the questions: how do we get this empirical content of perception; how is it possible to comprehend subjective sensations "limited to my skin" as the objective perception of things that lie "outside" of me? Causality is therefore not an empirical concept drawn from objective perceptions, as Hume had maintained; instead, as Kant had said, objective perception presupposes knowledge of causality. By this intellectual operation, comprehending every effect in our sensory organs as having an external cause, the external world arises. With vision, finding the cause is essentially simplified due to light acting in straight lines. We are seldom conscious of the process that interprets the double sensation in both eyes as coming from one object, that inverts the impressions on the retinas, and that uses the change in the apparent position of an object relative to more distant objects provided by binocular vision to perceive depth and distance. Schopenhauer stresses the importance of the intellectual nature of perception; the senses furnish the raw material by which the intellect produces the world as representation. He set out his theory of perception for the first time in
On Vision and Colors, Schopenhauer did not deny that the external world existed and was known empirically, yet he followed Kant in claiming that our knowledge and experience of the world is always in some sense dependent on
us. For Schopenhauer in particular, the spatiotemporal form and causal structure of the external world are contributed to our experiences of it by the mind as it renders perceptions. Schopenhauer reiterates this in the first sentence of his main work: "The world is my representation (
Die Welt ist meine Vorstellung)". Everything that there is for cognition (the entire world) exists simply as an object in relation to a subject—a 'representation' to a subject. Everything that belongs to the world is, therefore, 'subject-dependent'. In Book One of
The World as Will and Representation, Schopenhauer considers the world from this angle—that is, insofar as it is representation. Kant had previously argued that we perceive reality as something spatial and temporal not because reality is inherently spatial and temporal, but because that is how our minds operate in perceiving an object. Therefore, understanding objects in space and time represents our 'contribution' to an experience. For Schopenhauer, Kant's 'greatest service' lay in the 'differentiation between
phenomena and the thing-in-itself (
noumena), based on the proof that between everything and us there is always a perceiving mind.' In other words, Kant's primary achievement is to demonstrate that instead of being a blank slate where reality merely reveals its character, the mind, with sensory support, actively participates in constructing reality. Thus, Schopenhauer believed that Kant had shown that the everyday world of experience, and indeed the entire material world related to space and time, is merely 'appearance' or 'phenomena,' entirely distinct from the thing-in-itself.'
World as will In Book Two of
The World as Will and Representation, Schopenhauer considers what the world is beyond the aspect of it that appears to us—that is, the aspect of the world beyond representation, the world considered "
in-itself" or "
noumena", its inner essence. The very being in-itself of all things, Schopenhauer argues, is will (
Wille). The empirical world that appears to us as representation has plurality and is ordered in a spatio-temporal framework. The world as thing in-itself must exist outside the subjective forms of space and time. Although the world manifests itself to our experience as a multiplicity of objects (the "objectivation" of the will), each element of this multiplicity has the same blind essence striving towards existence and life. Human rationality is merely a secondary phenomenon that does not distinguish humanity from the rest of nature at the fundamental, essential level. The advanced cognitive abilities of human beings, Schopenhauer argues, serve the ends of willing—an illogical, directionless, ceaseless striving that condemns the human individual to a life of suffering unredeemed by any final purpose. Schopenhauer's philosophy of the will as the essential reality behind the world as representation is often called
metaphysical voluntarism. Yet the will as thing in-itself is free, as it exists beyond the realm of representation and thus is not constrained by any of the forms of necessity that are part of the principle of sufficient reason. According to Schopenhauer, salvation from our miserable existence can come through the will's being "tranquillized" by the metaphysical insight that reveals individuality to be merely an illusion. The saint or 'great soul' intuitively "recognizes the whole, comprehends its essence, and finds that it is constantly passing away, caught up in vain strivings, inner conflict, and perpetual suffering". The negation of the will, in other words, stems from the insight that the world in-itself (free from the forms of space and time) is one.
Ascetic practices, Schopenhauer remarks, are used to aid the will's "self-abolition", which brings about a blissful, redemptive "will-less" state of emptiness that is free from striving or suffering.
Art and aesthetics , who "directed such purely objective perception to the most insignificant objects, and set up a lasting monument of their objectivity and spiritual peace in paintings of
still life. The aesthetic beholder does not contemplate this without emotion." For Schopenhauer, human "willing"—desiring, craving, etc.—is at the root of
suffering. A temporary way to escape this pain is through aesthetic contemplation. Here one moves away from ordinary cognizance of individual things to cognizance of eternal Platonic
Ideas—in other words, cognizance that is free from the service of will. In aesthetic contemplation, one no longer perceives an object of perception as something from which one is separated; rather "it is as if the object alone existed without anyone perceiving it, and one can thus no longer separate the perceiver from the perception, but the two have become one, the entirety of consciousness entirely filled and occupied by a single perceptual image". Subject and object are no longer distinguishable, and the
Idea comes to the fore. From this aesthetic immersion, one is no longer an individual who suffers as a result of servitude to one's individual will but, rather, becomes a "pure, will-less, painless, timeless, subject of cognition". The pure, will-less subject of cognition is cognizant only of Ideas, not individual things: this is a kind of cognition that is unconcerned with relations between objects according to the Principle of Sufficient Reason (time, space, cause and effect) and instead involves complete absorption in the object. Art is the practical consequence of this brief aesthetic contemplation, since it attempts to depict the essence/pure Ideas of the world. Music, for Schopenhauer, is the purest form of art because it is the one that depicts the will itself without it appearing as subject to the Principle of Sufficient Reason, therefore as an individual object. According to
Daniel Albright, "Schopenhauer thought that
music was the only art that did not merely copy ideas, but actually embodied the will itself". He deemed music a timeless, universal language comprehended everywhere, that can imbue global enthusiasm, if in possession of a significant melody.
Mathematics Schopenhauer's
realist views on mathematics are evident in his criticism of contemporaneous attempts to prove the
parallel postulate in
Euclidean geometry. Writing shortly before the discovery of
hyperbolic geometry demonstrated the logical independence of the
axiom—and long before the
general theory of relativity revealed that it does not necessarily express a property of physical space—Schopenhauer criticized mathematicians for trying to use indirect
concepts to prove what he held was directly evident from
intuitive perception. Throughout his writings, Schopenhauer criticized the logical derivation of philosophies and mathematics from mere concepts, instead of from intuitive perceptions. Although Schopenhauer could see no justification for trying to prove Euclid's parallel postulate, he did see a reason for examining another of Euclid's axioms. This follows Kant's reasoning.
Ethics Schopenhauer asserts that the task of ethics is not to prescribe moral actions that ought to be done, but to investigate moral actions. As such, he states that philosophy is always theoretical: its task to explain what is given. According to Kant's transcendental idealism, space and time are forms of our sensibility in which phenomena appear in multiplicity. Reality
in itself is free from multiplicity, not in the sense that an object is one, but that it is outside the
possibility of multiplicity. Two individuals, though they appear distinct, are in-themselves not distinct. Appearances are entirely subordinated to the
principle of sufficient reason. The egoistic individual who focuses his aims on his own interests has to deal with empirical laws as well as he can. What is relevant for ethics are individuals who can act against their own self-interest. If we take a man who suffers when he sees his fellow men living in poverty and consequently uses a significant part of his income to support
their needs instead of his
own pleasures, then the simplest way to describe this is that he makes
less distinction between himself and others than is usually made. Regarding how things
appear to us, the egoist asserts a gap between two individuals, but the altruist experiences the sufferings of others as his own. In the same way a compassionate man cannot hurt animals, though they appear as distinct from himself. What motivates the altruist is compassion. The suffering of others is for him not a cold matter to which he is indifferent, but he feels connectiveness to all beings. Compassion is thus the basis of morality.
Eternal justice Schopenhauer calls the principle through which multiplicity appears the
principium individuationis. When we behold nature we see that it is a cruel battle for existence. Individual manifestations of the will can maintain themselves only at the expense of others—the will, as the only thing that exists, has no other option but to devour itself to experience pleasure. This is a fundamental characteristic of the will, and cannot be circumvented. Unlike temporal or human justice, which requires time to repay an evil deed and "has its seat in the state, as requiting and punishing", Eternal justice is not retributive, because retribution requires time. There are no delays or reprieves. Instead, punishment is tied to the offence, "to the point where the two become one. ... Tormenter and tormented are one. The [Tormenter] errs in that he believes he is not a partaker in the suffering; the [tormented], in that he believes he is not a partaker in the guilt." Those who have experienced this intuitive knowledge cannot affirm life, but exhibit asceticism and quietism, meaning that they are no longer sensitive to motives, are not concerned about their individual welfare, and accept without resistance the evil that others inflict on them. They welcome poverty and neither seek nor flee death. us into reproducing. Schopenhauer refused to conceive of love as either trifling or accidental, but rather understood it as an immensely powerful force that lay unseen within man's
psyche, guaranteeing the quality of the human race: It has often been argued that Schopenhauer's thoughts on sexuality foreshadowed the
theory of evolution, a claim met with satisfaction by
Darwin as he included a quotation from Schopenhauer in his
Descent of Man. This has also been noted with respect to
Freud's concepts of the
libido and the
unconscious mind, and
evolutionary psychology in general.
Political and social thought Politics Schopenhauer's politics were an echo of his system of ethics, which he elucidated in detail in his
Die beiden Grundprobleme der Ethik (the two essays
On the Freedom of the Will and
On the Basis of Morality). In occasional political comments in his
Parerga and Paralipomena and
Manuscript Remains, Schopenhauer described himself as a proponent of
limited government. Schopenhauer shared the view of
Thomas Hobbes on the necessity of the state and state action to check the innate destructive tendencies of our species. He also defended the independence of the legislative, judicial and executive branches of power, and a monarch as an impartial element able to practise justice (in a practical and everyday sense, not a cosmological one). He declared that monarchy is "natural to man in almost the same way as it is to bees and ants, to cranes in flight, to wandering elephants, to wolves in a pack in search of prey, and to other animals". Intellect in monarchies, he writes, always has "much better chances against stupidity, its implacable and ever-present foe, than it has in republics; but this is a great advantage." By his own admission, Schopenhauer did not give much thought to politics, and several times he wrote proudly of how little attention he paid "to political affairs of [his] day". In a life that spanned several revolutions in French and German government, and a few continent-shaking wars, he maintained his position of "minding not the times but the eternities". He wrote many disparaging remarks about Germany and the Germans. A typical example is: "For a German it is even good to have somewhat lengthy words in his mouth, for he thinks slowly, and they give him time to reflect."
Punishment The State, Schopenhauer claimed, punishes criminals to prevent future crimes. It places "beside every possible motive for committing a wrong a more powerful motive for leaving it undone, in the inescapable punishment. Accordingly, the criminal code is as complete a register as possible of counter-motives to all criminal actions that can possibly be imagined ..." He claimed that this doctrine was not original to him but had appeared in the writings of
Plato,
Seneca the Younger,
Thomas Hobbes,
Samuel von Pufendorf and
Paul Johann Anselm Ritter von Feuerbach.
Races and religions Schopenhauer attributed civilizational primacy to the northern "white races" due to their sensitivity and creativity (except for the ancient Egyptians and Hindus, whom he saw as equal): The highest civilization and culture, apart from the
ancient Hindus and
Egyptians, are found exclusively among the white races; and even with many dark peoples, the ruling caste or race is fairer in colour than the rest and has, therefore, evidently immigrated, for example, the
Brahmans, the
Incas, and the rulers of the
South Sea Islands. All this is due to the fact that necessity is the mother of invention because those tribes that emigrated early to the north, and there gradually became white, had to develop all their intellectual powers and invent and perfect all the arts in their struggle with need, want and misery, which in their many forms were brought about by the climate. This they had to do in order to make up for the parsimony of nature and out of it all came their high civilization. Schopenhauer was fervently
opposed to slavery. Speaking of the treatment of slaves in the
slave-holding states of the United States, he condemned "those devils in human form, those bigoted, church-going, strict sabbath-observing scoundrels, especially the Anglican parsons among them" for how they "treat their innocent black brothers who through violence and injustice have fallen into their devil's claws". The slave-holding states of North America, Schopenhauer writes, are a "disgrace to the whole of humanity". Schopenhauer also maintained a marked metaphysical and political
anti-Judaism. He argued that Christianity constituted a revolt against what he styled the materialistic basis of Judaism, exhibiting an Indian-influenced ethics reflecting the
Aryan-
Vedic theme of spiritual self-conquest. He saw this as opposed to the ignorant drive toward earthly utopianism and superficiality of a worldly "Jewish" spirit: [Judaism] is, therefore, the crudest and poorest of all religions and consists merely in an absurd and revolting
theism. It amounts to this that the
κύριος ['Lord'], who has created the world, desires to be worshipped and adored; and so above all he is jealous, is envious of his colleagues, of all the other gods; if sacrifices are made to them he is furious and his Jews have a bad time ... It is most deplorable that this religion has become the basis of the prevailing religion of Europe; for it is a religion without any metaphysical tendency. While all other religions endeavor to explain to the people by symbols the metaphysical significance of life, the religion of the Jews is entirely immanent and furnishes nothing but a mere war-cry in the struggle with other nations.
Women In his 1851 essay "On Women", Schopenhauer expressed opposition to what he called "Teutonico-Christian stupidity" of "reflexive, unexamined reverence for the female (
abgeschmackten Weiberveneration)". He wrote: "Women are directly fitted for acting as the nurses and teachers of our early childhood by the fact that they are themselves childish, frivolous and short-sighted; in a word, they are big children all their life long—a kind of intermediate stage between the child and the full-grown man." He opined that women are deficient in artistic faculties and sense of justice, and expressed his opposition to
monogamy. He claimed that "woman is by nature meant to obey". The essay does give some compliments: "women are decidedly more sober in their judgment than [men] are", and are more sympathetic to the suffering of others. Schopenhauer's writings influenced many, from
Friedrich Nietzsche to nineteenth-century
feminists, and continue to inspire
sexist views today. His
biological analysis of the difference between the sexes, and their separate roles in the struggle for survival and reproduction, anticipates some of the claims that were later ventured by
sociobiologists and
evolutionary psychologists. When the elderly Schopenhauer sat for
a sculpture portrait by the Prussian sculptor
Elisabet Ney in 1859, he was much impressed by the young woman's wit and independence, as well as by her skill as a visual artist. After his time with Ney, he told Richard Wagner's friend
Malwida von Meysenbug: "I have not yet spoken my last word about women. I believe that if a woman succeeds in withdrawing from the mass, or rather raising herself above the mass, she grows ceaselessly and more than a man."
Pederasty In the third, expanded edition of
The World as Will and Representation (1859), Schopenhauer added an appendix to his chapter on the
Metaphysics of Sexual Love. He wrote that
pederasty has the benefit of preventing ill-begotten children. Concerning this, he stated that "the vice we are considering appears to work directly against the aims and ends of nature, and that in a matter that is all important and of the greatest concern to her it must in fact serve these very aims, although only indirectly, as a means for preventing greater evils." Schopenhauer ends the appendix with the statement that "by expounding these paradoxical ideas, I wanted to grant to the professors of philosophy a small favour. I have done so by giving them the opportunity of slandering me by saying that I defend and commend pederasty."
Heredity and eugenics Schopenhauer viewed personality and
intellect as inherited. He quotes
Horace's saying, "From the brave and good are the brave descended" (
Odes, iv, 4, 29) and Shakespeare's line from
Cymbeline, "Cowards father cowards, and base things sire base" (IV, 2) to reinforce his hereditarian argument. Mechanistically, Schopenhauer believed that a person inherits his intellect through his mother, and personal character through the father. This belief in heritability of traits informed Schopenhauer's view of love—placing it at the highest level of importance. For Schopenhauer the "final aim of all love intrigues, be they comic or tragic, is really of more importance than all other ends in human life. What it all turns upon is nothing less than the composition of the next generation. ... It is not the weal or woe of any one individual, but that of the human race to come, which is here at stake." This view of the importance for the species of whom we choose to love was reflected in his views on
eugenics or good breeding. Here Schopenhauer wrote: With our knowledge of the complete unalterability both of character and of mental faculties, we are led to the view that a real and thorough improvement of the human race might be reached not so much from outside as from within, not so much by theory and instruction as rather by the path of generation. Plato had something of the kind in mind when, in the fifth book of his
Republic, he explained his plan for increasing and improving his warrior caste. If we could castrate all scoundrels and stick all stupid geese in a convent, and give men of noble character a whole
harem, and procure men, and indeed thorough men, for all girls of intellect and understanding, then a generation would soon arise which would produce a better age than that of
Pericles. In another context, Schopenhauer reiterated his eugenic thesis: "If you want Utopian plans, I would say: the only solution to the problem is the
despotism of the wise and noble members of a genuine aristocracy, a genuine nobility, achieved by mating the most magnanimous men with the cleverest and most gifted women. This proposal constitutes my Utopia and my Platonic Republic." Analysts (e.g.,
Keith Ansell-Pearson) have suggested that Schopenhauer's anti-
egalitarianist sentiment and his support for eugenics influenced the neo-aristocratic philosophy of Friedrich Nietzsche, who initially considered Schopenhauer his mentor.
Animal rights As a consequence of his
monistic philosophy, Schopenhauer was very concerned about animal welfare and rights. For him, all individual animals, including humans, are essentially phenomenal manifestations of the one underlying Will. For him the word "will" designates force, power, impulse, energy, and desire; it is the closest word we have that can signify both the essence of all external things and our own direct, inner experience. Since every living thing possesses will, humans and animals are fundamentally the same and can recognize themselves in each other. For this reason, he claimed that a good person would have sympathy for animals, who are our fellow sufferers. In 1841 he praised the establishment in London of the
Society for the Prevention of Cruelty to Animals, and in Philadelphia of the Animals' Friends Society. Schopenhauer went so far as to protest using the pronoun "it" in reference to animals because that led to treatment of them as though they were inanimate things. To reinforce his points, Schopenhauer referred to anecdotal reports of the look in the eyes of a monkey who had been shot and also the grief of a baby elephant whose mother had been killed by a hunter. Schopenhauer was very attached to his succession of pet poodles. He criticized
Baruch Spinoza's belief that animals are a mere means for the satisfaction of humans. Tim Madigan wrote that despite all of his bombast, Schopenhauer was a sympathetic character who had concerns for the suffering of animals.
Intellectual interests and affinities Schopenhauer had a wide range of interests, from science and opera to occultism and literature. In his student years, Schopenhauer went more often to lectures in the sciences than philosophy. He kept a strong interest as his personal library contained near to 200 books of scientific literature at his death, and his works refer to scientific titles not found in the library. Many evenings were spent in the theatre, opera and ballet; Schopenhauer especially liked the operas of
Wolfgang Amadeus Mozart,
Gioachino Rossini and
Vincenzo Bellini. Schopenhauer considered music the highest art, and played the flute during his whole life. As a polyglot, he knew German, Italian, Spanish, French, English,
Latin and
ancient Greek, and was an avid reader of poetry and literature. He particularly revered Goethe,
Petrarch,
Pedro Calderón de la Barca and
William Shakespeare. If Goethe had not been sent into the world simultaneously with Kant in order to counterbalance him, so to speak, in the spirit of the age, the latter would have been haunted like a nightmare many an aspiring mind and would have oppressed it with great affliction. But now the two have an infinitely wholesome effect from opposite directions and will probably raise the German spirit to a height surpassing even that of antiquity. In philosophy, his most important influences were, according to himself, Kant, Plato and the
Upanishads.
Indology Schopenhauer read the Latin translation of the
ancient Hindu texts, the
Upanishads, translated by the French writer
Anquetil du Perron from the Persian translation of Prince
Dara Shukoh entitled
Sirre-Akbar ("The Great Secret"). He was so impressed by its
philosophy that he called it "the production of the highest human wisdom", and believed it contained superhuman concepts. Schopenhauer considered India as "the land of the most ancient and most pristine wisdom, the place from which
Europeans could trace their descent and the tradition by which they had been influenced in so many decisive ways", and regarded the
Upanishads as "the most profitable and elevating reading which [...] is possible in the world. It has been the solace of my life, and will be the solace of my death." In
The World as Will and Representation, he writes: If the reader has also received the benefit of the Vedas, the access to which by means of the Upanishads is in my eyes the greatest privilege which this still young century (1818) may claim before all previous centuries, if then the reader, I say, has received his initiation in primeval Indian wisdom, and received it with an open heart, he will be prepared in the very best way for hearing what I have to tell him. It will not sound to him strange, as to many others, much less disagreeable; for I might, if it did not sound conceited, contend that every one of the detached statements which constitute the Upanishads, may be deduced as a necessary result from the fundamental thoughts which I have to enunciate, though those deductions themselves are by no means to be found there. Schopenhauer was first introduced to Anquetil du Perron's translation by Friedrich Majer in 1814. They met during the winter of 1813–1814 in
Weimar at the home of Schopenhauer's mother, according to the biographer Safranski. Majer was a follower of
Herder, and an early
Indologist. Schopenhauer did not begin serious study of the Indic texts until the summer of 1814. Safranski maintains that, between 1815 and 1817, Schopenhauer had another important cross-pollination with Indian thought in
Dresden. This was through his neighbor of two years,
Karl Christian Friedrich Krause. Krause was then a minor and rather unorthodox philosopher who attempted to mix his own ideas with ancient Indian wisdom. Krause had also mastered
Sanskrit, unlike Schopenhauer, and they developed a professional relationship. It was from Krause that Schopenhauer learned
meditation and received the closest thing to expert advice concerning Indian thought. For Schopenhauer, will had
ontological primacy over the
intellect; desire is prior to thought. Schopenhauer felt this was similar to notions of
puruṣārtha or goals of life in
Vedānta Hinduism. In Schopenhauer's philosophy, denial of the will is attained by: • personal experience of an extremely great suffering that leads to loss of the
will to live; or • knowledge of the essential nature of life in the world through observation of the suffering of other people. The book
Oupnekhat (Upanishad) always lay open on his table, and he invariably studied it before going to bed. He called the opening up of
Sanskrit literature "the greatest gift of our century", and predicted that the philosophy and knowledge of the Upanishads would become the cherished faith of the West. Most noticeable, in the case of Schopenhauer's work, was the significance of the
Chandogya Upanishad, whose
Mahāvākya,
Tat Tvam Asi, is mentioned throughout
The World as Will and Representation.
Buddhism Schopenhauer noted a correspondence between his doctrines and the
Four Noble Truths of
Buddhism. Similarities centered on the principles that life involves suffering, that suffering is caused by desire (
taṇhā), and that the extinction of desire leads to liberation. Thus three of the four "truths of the Buddha" correspond to Schopenhauer's doctrine of the will. In Buddhism, while greed and lust are always unskillful, desire is ethically variable – it can be skillful, unskillful, or neutral. Buddhist
nirvāṇa is not equivalent to the condition that Schopenhauer described as denial of the will. Nirvāṇa is not the extinguishing of the
person as some Western scholars have thought, but only the "extinguishing" (the literal meaning of nirvana) of the flames of greed, hatred, and delusion that assail a person's character. Schopenhauer made the following statement in his discussion of religions: If I wished to take the results of my philosophy as the standard of truth, I should have to concede to Buddhism pre-eminence over the others. In any case, it must be a pleasure to me to see my doctrine in such close agreement with a religion that the majority of men on earth hold as their own, for this numbers far more followers than any other. And this agreement must be yet the more pleasing to me, inasmuch as
in my philosophizing I have certainly not been under its influence [emphasis added]. For up till 1818, when my work appeared, there was to be found in Europe only a very few accounts of Buddhism. Buddhist philosopher
Keiji Nishitani sought to distance Buddhism from Schopenhauer. While Schopenhauer's philosophy may sound rather mystical in such a summary, his
methodology was resolutely
empirical, rather than speculative or transcendental: Philosophy ... is a science, and as such has no articles of faith; accordingly, in it nothing can be assumed as existing except what is either positively given empirically, or demonstrated through indubitable conclusions. Also note: This actual world of what is knowable, in which we are and which is in us, remains both the material and the limit of our consideration. The argument that Buddhism affected Schopenhauer's philosophy more than any other
Dharmic faith loses credence since he did not begin a serious study of Buddhism until after the publication of
The World as Will and Representation in 1818. Scholars have started to revise earlier views about Schopenhauer's discovery of Buddhism. Proof of early interest and influence appears in Schopenhauer's 1815–16 notes (transcribed and translated by Urs App) about Buddhism. They are included in a recent case study that traces Schopenhauer's interest in Buddhism and documents its influence. Other scholarly work questions how similar Schopenhauer's philosophy actually is to Buddhism.
Magic and occultism Some traditions in
Western esotericism and
parapsychology interested Schopenhauer and influenced his philosophical theories. He praised
animal magnetism as evidence for the reality of magic in his
On the Will in Nature, and went so far as to accept the division of magic into
left-hand and right-hand magic, although he doubted the existence of demons. Schopenhauer grounded magic in the Will and claimed all forms of magical transformation depended on the human Will, not on ritual. This theory notably parallels
Aleister Crowley's system of magic and its emphasis on human will. Schopenhauer rejected the theory of
disenchantment and claimed philosophy should synthesize itself with magic, which he believed amount to "practical metaphysics".
Neoplatonism, including the traditions of
Plotinus and to a lesser extent
Marsilio Ficino, has also been cited as an influence on Schopenhauer. == Thoughts on other philosophers ==