One cannot step twice into the same river, for the waters are continually flowing on.
Authentication Score 2
Original Citation
Heraclitus. Fragments. 5th century BC, DK B12.
Current Citation
Heraclitus. "Heraclitus of Ephesus." The First Philosophers: The Presocratics and Sophists, translated by Robin Waterfield. Oxford University Press, 2009, DK B12.