Thank you wikiquote… Heraclitus: Fragment 41, Quoted by Plato in Cratylus:
- You could not step twice into the same river; for other waters are ever flowing on to you.
- You cannot step twice into the same river; for other waters are continually flowing in.
- You cannot step twice into the same stream. For as you are stepping in, other waters are ever flowing on to you.
- You cannot step twice into the same river.
- You cannot step into the same river twice.
- It is impossible to step into the same river twice.
- No man ever steps in the same river twice, for it’s not the same river and he’s not the same man.
or, I think, a variant: “you can never go home again”
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