αὐτὸ δηλοῖ τοὔργον ᾗ τείνειν χρεών

From LSJ

αὔριον ὔμμε‎ πάσας ἐγὼ λουσῶ Συβαρίτιδος ἔνδοθι λίμνας‎ → tomorrow I'll wash you one and all in Sybaris lake

Source

English > Greek (Woodhouse Quotes Reversed)

the very deed shows us at what we must aim