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
con-cīvis: is, m.,
I a fellow-citizen, transl. of συμπολίτης> (late Lat.), Tert. adv. Marc. 5, 17; id. Res Carn. 41.
