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
(1) sacellus, a, um, dim. de sacer : Prisc. Gramm. 3, 37.(2) săcellus, ī, m., c. saccellus : Petr. 140, 15.