Zadok HaKohen's philosophy of Judaism very much continues the thinking of his teacher Rabbi
Mordechai Yosef Leiner. Zadok HaKohen was a much more prolific writer than Leiner had been. It is therefore difficult to determine where Rabbi Zadok's writing is a mere articulation of ideas left somewhat veiled (albeit possibly purposely) in the writings of Leiner, and where Rabbi Zadok is actually introducing new ideas.
Tzidkas HaTzaddik Zadok HaKohen wrote that a lot can be learnt about a person from his dreams; what we dream is a reflection of who we are. It is the measure of our aspirations and goals, and of those values we hold dear and place above all else. One does not squelch the evil inclination but rather helps channel its energies positively.
Pri Tzaddik, Genesis Humanity's first sin was not Adam and Eve's eating of forbidden fruit, but rather the way they ate it. The Tree of Knowledge, says he, was not a tree or a food or a thing at all. Rather it was a way of eating. Whenever a person grabs self-conscious pleasure from the world, he falls, at that moment, from God consciousness, and eats from the Tree of Knowledge.
Takkanas HaShavim Zadok HaKohen said that the
Oral Law developed to its full potential after the victory of the
Hasmoneans over the Greek culture, a culture characterized by deep analysis and hair-splitting argument. These virtues were converted to a holy nature with the victory of Israel over Greece. This was the fulfillment of the verse “God will give beauty to Yefet and this beauty will dwell in the tents of Shem” (as per Megillah 9b). After the victory, Jews could begin the successful integration of natural science, logic, and philosophy into the world of the
Written Law. Only then could the Oral Law truly begin to flourish. ==Influence==