PROTAGORAS [80 DK]D Attested Titles (D1–D8)
D1 (< A1) Diog. Laert. 9.55
ἔστι δὲ τὰ σῳζόμενα αὐτοῦ βιβλία τάδε·1 Τέχνη ἐριστικῶν, Περὶ πάλης, Περὶ τῶν μαθημάτων, Περὶ πολιτείας, Περὶ φιλοτιμίας, Περὶ ἀρετῶν, Περὶ τῆς ἐν ἀρχῇ καταστάσεως, Περὶ τῶν ἐν Ἅιδου, Περὶ τῶν οὐκ ὀρθῶς τοῖς ἀνθρώποις πρασσομένων, Προστακτικός, Δίκη ὑπὲρ μισθοῦ, Ἀντιλογιῶν αʹβʹ.
D2 (B8) Plat. Soph. 232d–e
[ΞΕ.] τά γε μὴν περὶ πασῶν τε καὶ κατὰ μίαν ἑκάστην τέχνην, ἃ δεῖ πρὸς ἕκαστον αὐτὸν τὸν δημιουργὸν ἀντειπεῖν, δεδημοσιωμένα που καταβέβληται γεγραμμένα τῷ βουλομένῳ μαθεῖν.
PROTAGORASD Attested Titles (D1–D8)
D1 (< A1) Diogenes Laertius
The books of his that have been preserved are the following: The Art of Eristic, On Wrestling, On Mathematics [or: On the Sciences], On the Constitution of the City, On Love of Honors, On Virtues, On the Original Condition [scil. of humans], On What is in Hades, On What Humans Do Wrong, Imperative Discourse, Trial for His Payment, Opposing Arguments in two books.1
D2 (B8) Plato, Sophist
[The stranger from Elea:] With regard to all the arts and for each one of them, the way in which one must contradict each of the artisans himself is set out (kataballesthai), as it were in the public domain, written down for whoever wants to learn it.