In 2015, Benjamin Efrati illustrates the life of Heraclitus of Ephesus, a pre-Socratic philosopher like no other. Mystical, cryptic, prophetic and unconventional, Heraclitus is the philosopher of change, known for having asserted that one does not bathe twice in the same river. By designating change as the only lasting reality in this world, Heraclitus intends to demonstrate the vanity of human values. Preceding by several centuries the apogee of Greek philosophy, it is distinguished from Stoicism, Skepticism and Cynicism. His philosophy concerns the world, language and reality. His quest for knowledge goes far beyond the idea that asceticism leads to happiness.