Every ruler must remember three things. Firstly, that he rules man; secondly, that he rules according to law, and thirdly, that he does not rule for ever.
Ἀγάθων ἔφη· τὸν ἄρχοντα τριῶν δεῖ μεμνῆσθαι· πρῶτον ὅτι ἀνθρώπων ἄρχει, δεύτερον ὅτι νόμοις ἄρχει, τρίτον ὅτι οὐκ ἀεὶ ἄρχει.
Original text (Ancient Greek)