[7] It was then that he began to give his public classes that would take place on Shabbat, Holidays, Rosh Chodesh and special occasions.
Rabbi Zadok was a prolific writer in all areas of Judaism, halakhah, Hasidut, Kabbalah, angelology, and ethics; he also wrote scholarly essays on astronomy, geometry, and algebra.
Zadok HaKohen's radical philosophy of Judaism very much continues the thinking of his teacher Rabbi Mordechai Yosef Leiner.
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.
After the victory, Jews could begin the successful integration of natural science, logic, and philosophy into the world of the Written Law.
Rabbi Moshe Tuvia Lieff has given numerous lectures on the works of Zadok HaKohen.