About Heraclitus:
Heraclitus of Ephesus is known about his early life and education, but he regarded himself as self-taught and a pioneer of wisdom. From the lonely life he led, and still more from the riddling and allegedly paradoxical nature of his philosophy and his stress upon the needless unconsciousness of humankind, he was called "The Obscure" and the "Weeping Philosopher".
You could not step twice into the same rivers; for other waters are ever flowing on to you.
Heraclitus