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
subs.
P. and V. ἔχιδνα, ἡ (Plat.), ὄφις, ἡ (Plat. also Ar.), Ar. and V. δράκων, ὁ, ἑρπετόν, τό, P. ἔχις, ὁ (Plat.), V. δράκαινα, ἡ; see serpent.
