Full Idea
Cratylus was appalled that Heraclitus said you could not step twice into the same river, because it was already going too far to admit stepping into the same river once.
Gist of Idea
Cratylus said you couldn't even step into the same river once
Source
report of Cratylus (fragments/reports [c.425 BCE]) by Aristotle - Metaphysics 1010a
Book Reference
Aristotle: 'Metaphysics', ed/tr. Lawson-Tancred,Hugh [Penguin 1998], p.101
A Reaction
Compare Idea 427.
Related Idea
Idea 427 It is not possible to step twice into the same river [Heraclitus]