[halomru]

By that definition, in the real world you never do the same thing twice. Your environment always changes (in fact there are several natural laws dictating that it does).

From the pedantic viewpoint the quote may be true, but then it doesn't say anything useful anymore.

[bowlich]

“No man ever steps in the same river twice, for it's not the same river and he's not the same man.”

― Heraclitus

(I thought this quote was Xeno, but the internet says I'm wrong)

[theprotocol]

We're in agreement on that, and that's why this quote is terrible and amounts to nothing.