There is controversy over whether the term irrationalism is suitable as a historical category and to which positions it can be attributed.
Lebensphilosophie History of irrationalism greatly overlaps with that of Lebensphilosophie. Both philosophical movements recognize
Arthur Schopenhauer as a major 19th century thinker, with Schopenhauer's
ontological irrationalism, describing that world as not organized in a rational way. Since humans are born as bodies-manifestations of an irrational striving for meaning, they are vulnerable to pain and suffering. Likewise,
Friedrich Nietzsche and
Henri Bergson are both recognized as Lebensphilosophie pioneers and representatives of irrationalism. In his 1886 book,
Beyond Good and Evil, Nietzsche emphasized that humans by nature are irrational and criticized attempts of "
rationality" of trying to neglect the fact.
Neo-Hegelianism Certain positions of
neo-Hegelianism are considered to fall in form of irrationalism.
Existentialism Existentialism is considered form of irrationalism.
Søren Kierkegaard's assessment of religious belief is controversial. Some attribute
fideism to him because he excludes religious truths from access by reason.
Aestheticism (Futurism, Dadaism) Connected to irrationalism is also
aestheticism, which arose between the 19th and 20th centuries, particularly present in the
West European Decadent movement and the Italian . In his 1889 novel,
Il Piacere, which is determined to be partly autobiographical,
Gabriele D'Annunzio describes how the aesthete lets himself be guided only by the perennial flow of sensations, without following a logical or moral order. In the artistic-literary field, the theme of irrationalism, as a reaction to the positivist and rationalist tendencies of bourgeois society, is found both in
decadentism and especially in its counterpart:
futurism. In it, the exaltation of technology and
progress prevails, accompanied by a rejection of pre-established schemes and traditional rules. The use of "free words" testifies, for example, to the will to transgress the logic of syntactic-grammatical constructs, while activism and the intoxication of living are celebrated as key elements of its manifesto. Finally, the aesthetic current of
Dadaism falls within irrationalism. It was born as a protest against the atrocities of the
First World War and later became a sort of "artistic
nihilism". Reason and logic had left humanity the horrors of war, and the only way of salvation was the rejection of logic to embrace anarchy and the irrational. However, it has been observed that anarchy and the rejection of values and order retain a certain rationality: the systematic destruction of values is not irrational, if one thinks that it must be put into action.
Other forms of irrationalism Elements of irrationalism have also been identified by various quarters in some philosophical positions in 20th century philosophy and contemporary philosophy. These attributions are, of course, controversial. They have been made, for example, for: •
Personalism • certain positions in
hermeneutics, including
Emil Staiger, and
Wolfgang Iser, because – according to critics – they rely on a moment of subjective empathy that is resistant to justification. The early
Dilthey was also criticized as an "empathy hermeneutic.” • Tendentious
cultural historians such as
Oswald Spengler. •
Trumpism and emergent global
right-wing populist movement following the 2007-2009
Great Recession have been identified of having elements associated with irrationalism. •
Intuitionist positions in the justification of morality and norms •
Georges Sorel and his theory of violence. •
Pragmatism is also accused of being irrationalist, although there are analysts who contest this claim. •
Jacques Derrida’s philosophy of
deconstruction and his criticism of
logocentrism as well as
post-modern movements in general, such as the philosophy of
Georges Bataille or
Gilles Deleuze. Others, however, see such labeling as unfounded defamation, which shies away from dealing with the serious criticism of rationality of the corresponding positions. •
Psychoanalysis is also accused of irrationalism which is confused with the unconscious whose analysis is instead directed at reconstructing the rationality of consciousness. ==Irrationalism outside of philosophy==