πάντα χωρεῖ καὶ οὐδὲν μένει καὶ δὶς ἐς τὸν αὐτὸν ποταμὸν οὐκ ἂν ἐμβαίης → all things move and nothing remains still, and you cannot step twice into the same stream
αἰτήσιος, ο (Μ) αἴτησιςαυτός που αιτεί, που ζητάει κάτι.