Plato, Phaedrus 279b-c
Socrates gives an example of a Socratic prayer.
ὦ φίλε Πάν τε καὶ ἄλλοι ὅσοι τῇδε θεοί, δοίητέ μοι καλῷ γενέσθαι τἄνδοθεν· ἔξωθεν δὲ ὅσα ἔχω, τοῖς ἐντὸς εἶναί μοι φίλια. πλούσιον δὲ νομίζοιμι τὸν σοφόν· τὸ δὲ χρυσοῦ πλῆθος εἴη μοι ὅσον μήτε φέρειν μήτε ἄγειν δύναιτο ἄλλος ἢ ὁ σώφρων.
O dear Pan and as many other gods as are here, grant that I may become beautiful within, and that what I possess externally may be in harmony with what is within. May I consider wisdom to be wealth, and may I have just as much gold as no one other than a moderate person could bear and carry.