Plato, Letters 322b

ἤδη πρεσβύτερον καὶ εἰθισμένον ὑπὸ τῶν ἔμπροσθεν πολλὰ καὶ ἀνόμοια τῇ ἐκείνου συμβουλῇ πράττειν· ἐπεὶ πάντων ἂν ἥδιστα καθάπερ πατρὶ συνεβούλευεν αὐτῷ, εἰ μὴ μάτην μὲν κινδυνεύσειν ᾤετο, πλέον δʼ οὐδὲν ποιήσειν. ταὐτὸν δὴ οἶμαι δρᾶσαι ἂν καὶ τὴν ἐμὴν συμβουλήν. εἰ γὰρ δόξαιμεν ἀνιάτως ἔχειν, πολλὰ ἂν χαίρειν ἡμῖν εἰπὼν ἐκτὸς

already old and habituated by the previous statesmen to do many things at variance with his own counsel. For he would have given counsel to it, as to his father, with the greatest possible pleasure, had he not supposed that he would be running risks in vain, and would do no good. And I suppose that he would do the same as regards counselling me. For if he deemed us to be in an incurable state, he would bid us a long farewell and leave off giving counsel about me or my affairs.