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

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

没有人会两次踏入同一条河，因为这不是同一条河，他也不是同一个人。

-- Heraclitus 赫拉克利特