Heraclitus of Ephesus (c. 544 - c. 483 BC) was the most tragic philosopher in history, calling for civic heroism and independent thinking. He became the founder of the historical or original form of dialectics. His only work, “On Nature,” has come down to us in fragments. For his ideas, as well as complex language, he received the nickname Dark. He was no one’s student and did not teach anyone, but his followers were Plato, Socrates, Aristotle, and later Hegel, Nietzsche, Spengler and Heidegger. Heraclitus expressed unusual thoughts in succinct, memorable formulations, many of which have survived to this day: “Everything flows, everything changes,” “You cannot step into the same river twice,” “Much knowledge does not teach the mind.” Based on the achievements of world Heraclitus studies and on the imagery of modernist poets, philosopher Alexander Markov adapts Heraclitus’s system of views and reconstructs the general directions of his philosophical searches, relevant in the context of modern exact and natural sciences. The publishing layout is saved in a4.pdf format.