Heraclitus (c. 535 – c. 475 BCE) was a pre-Socratic Greek philosopher born to an aristocratic family in Ephesus, present-day Turkey. Little is known about his early life and education, but he regarded himself as a self-taught pioneer of wisdom. He is famous for his insistence on an ever-present change in the universe, as stated in his famous saying, “No man ever steps in the same river twice”.

The path up and down are one and the same.