Plato, Letters 311d

ψυχαὶ μαντεύονται ταῦτα οὕτως ἔχειν, αἱ δὲ μοχθηρόταται οὔ φασι, κυριώτερα δὲ τὰ τῶν θείων ἀνδρῶν μαντεύματα ἢ τὰ τῶν μή. οἶμαι δʼ ἔγωγε τοῖς ἔμπροσθεν, περὶ ὧν λέγω, εἰ ἐξείη αὐτοῖς ἐπανορθώσασθαι τὰς αὑτῶν συνουσίας, πάνυ ἂν σπουδάσαι ὥστε βελτίω λέγεσθαι περὶ αὑτῶν ἢ νῦν. τοῦτο οὖν ἡμῖν ἔτι, σὺν θεῷ εἰπεῖν, ἔξεστιν, εἴ τι ἄρα μὴ καλῶς πέπρακται κατὰ τὴν ἔμπροσθεν συνουσίαν, ἐπανορθώσασθαι καὶ ἔργῳ καὶ λόγῳ· περὶ γὰρ φιλοσοφίαν φημὶ

while the worst deny it; and the divinings of men who are godlike are of more authority than those of men who are not. I certainly think that, had it been in their power to rectify what was wrong in their intercourse, those men of the past whom I have mentioned would have striven to the utmost to ensure a better report of themselves than they now have. In our case, then—if God so grant—it still remains possible to put right whatever has been amiss in word or deed during our intercourse in the past. For I maintain that, as regards