Plato, Letters 352b

Πλάτων τοῖς Δίωνος οἰκείοις τε καὶ ἑταίροις εὖ πράττειν.ἃ δʼ ἂν διανοηθέντες μάλιστα εὖ πράττοιτε ὄντως, πειράσομαι ταῦθʼ ὑμῖν κατὰ δύναμιν διεξελθεῖν. ἐλπίζω δὲ οὐχ ὑμῖν μόνοις συμβουλεύσειν τὰ συμφέροντα, μάλιστά γε μὴν

Plato to the relatives and companions of Dion wishes well-doing. The policy which would best serve to secure your real well-doing is that which I shall now endeavor as best I can to describe to you. And I hope that my advice will not only be salutary to you (though to you in special), but also