"Other men are unaware of what they do when they are awake just as they are forgetful of what they do when they are asleep." ― Heraclitus From Heraclitus Philosopher Added on 1/31/2026 About Heraclitus Heraclitus was an ancient Greek philosopher from Ephesus known for doctrines of change, conflict, and the logos. His surviving fragments deeply influenced later Greek, Roman, and modern philosophy. View all quotes from Heraclitus