P3 (A2) Plat. Prot. 315c–e
[ΣΩ.] καὶ μὲν δὴ καὶ Τάνταλόν γε εἰσεῖδον—ἐπεδήμει γὰρ ἄρα καὶ Πρόδικος ὁ Κεῖος [. . .]. ὁ μὲν οὖν Πρόδικος ἔτι κατέκειτο ἐγκεκαλυμμένος ἐν κῳδίοις τισὶν καὶ στρώμασιν καὶ μάλα πολλοῖς, ὡς ἐφαίνετο. [. . .] περὶ δὲ ὧν διελέγοντο οὐκ ἐδυνάμην ἔγωγε μαθεῖν ἔξωθεν καίπερ λιπαρῶς ἔχων ἀκούειν τοῦ Προδίκου· πάσσοφος γάρ μοι δοκεῖ ἁνὴρ εἶναι καὶ θεῖος. ἀλλὰ διὰ τὴν βαρύτητα τῆς φωνῆς βόμβος τις ἐν τῷ οἰκήματι γιγνόμενος ἀσαφῆ ἐποίει τὰ λεγόμενα.
P4 (< A3) Plat. Hipp. mai. 282c
[ΣΩ.] [. . . = P2] καὶ ἰδίᾳ ἐπιδείξεις ποιούμενος καὶ τοῖς νέοις συνὼν χρήματα ἔλαβεν θαυμαστὰ ὅσα.
P5 (< A11) Plat. Crat. 384b
[ΣΩ.] εἰ μὲν οὖν ἐγὼ ἤδη ἠκηκόη παρὰ Προδίκου τὴν πεντηκοντάδραχμον ἐπίδειξιν, ἣν ἀκούσαντι ὑπάρχει περὶ τοῦτο πεπαιδεῦσθαι, ὥς φησιν ἐκεῖνος, οὐδὲν ἂν ἐκώλυέν σε αὐτίκα μάλα εἰδέναι τὴν ἀλήθειαν περὶ ὀνομάτων ὀρθότητος· νῦν δὲ οὐκ ἀκήκοα, ἀλλὰ τὴν δραχμιαίαν.
P3 (A2) Plato, Protagoras
[Socrates:] And indeed “I also saw Tantalus” [cf. Homer, Od. 11.582]:1 for Prodicus of Ceos too was in town [. . .]. Prodicus was still lying down, covered with some sheepskins and bedclothes, with a lot of them, as could be seen. [. . .] what they were talking about I was not able to understand from outside, although I was very eager to hear Prodicus—for the man seems to me to be surpassingly wise, and divine—but his deep voice produced a booming sound in the room that made what he was saying unclear [cf. SOPH. R6].
P4 (< A3) Plato, Greater Hippias
[Socrates:] [. . .] and he made an incredible amount of money by making private performances and teaching the young.
P5 (< A11) Plato, Cratylus
[Socrates:] If I had heard Prodicus’ fifty-drachma performance, which, as he himself says, makes the listener fully educated in this subject matter [scil. the knowledge of words], nothing would prevent you from immediately knowing quite well the truth about the correctness of words. But as it is, I did not hear that one, but only the one-drachma one.