ποταμῷ γὰρ οὐκ ἔστιν ἐμβῆναι δὶς τῷ αὐτῷ → it is impossible to step twice in the same river, you cannot step twice into the same rivers
[Seite 243] τό, Widerstand, Streit, Clem. Al.
ἀντᾰγώνισμα: -ατος, τό, ἀγὼν κατά τινος ἄλλου, Κλήμ. Ἀλ. 839: ― ὡσαύτως -ώνισις, εως, ἡ, Βυζ.