λέγει που Ἡράκλειτος ὅτι “πάντα χωρεῖ καὶ οὐδὲν μένει,” καὶ ποταμοῦ ῥοῇἀπεικάζων τὰ ὄντα λέγει ὡς “δὶς ἐς τὸν αὐτὸν ποταμὸν οὐκ ἂν ἐμβαίης.”



Though you cannot step twice in the same river, no force of nature debars you from pissing in the same sewer time after time.
Likewise the ease of rekindling an old hatred contrasts with the difficulty of renewing an old friendship.
In this regard, love affairs are more akin to sewers than rivers.