Plato, Letters 331a

κινεῖν, ὡς ἀποθανουμένῳ ἐὰν κινῇ, ταῖς δὲ βουλήσεσιν καὶ ἐπιθυμίαις αὐτῶν ὑπηρετοῦντας συμβουλεύειν κελεύοιεν, τίνα τρόπον γίγνοιτʼ ἂν ῥᾷστά τε καὶ τάχιστα εἰς τὸν ἀεὶ χρόνον, τὸν μὲν ὑπομένοντα συμβουλὰς τοιαύτας ἡγοίμην ἂν ἄνανδρον, τὸν δʼ οὐχ ὑπομένοντα ἄνδρα. ταύτην δὴ τὴν διάνοιαν ἐγὼ κεκτημένος, ὅταν τίς μοι συμβουλεύηται περί τινος τῶν μεγίστων περὶ τὸν αὑτοῦ βίον, οἷον περὶ χρημάτων κτήσεως

to leave the government alone and not disturb it, on pain of death if he does disturb it, while ordering him to advise as to how all that contributes to their desires and appetites may most easily and quickly be secured for ever and ever—then, in such a case, I should esteem unmanly the man who continued to engage in counsels of this kind, and the man who refused to continue manly. This, then, being the view I hold, whenever anyone consults me concerning any very important affair relating to his life—the acquisition of wealth, for instance,