[72] Plato, Protag. p. 334 D.

[73] Plato, Prot. pp. 334 E, 335 A-C.

Interference of Kallias to get the debate continued. Promiscuous conversation. Alkibiades declares that Protagoras ought to acknowledge superiority of Sokrates in dialogue.

Here Sokrates rises to depart; but Kallias, the master of the house, detains him, and expresses an earnest wish that the debate may be continued. A promiscuous conversation ensues, in which most persons present take part. Alkibiades, as the champion of Sokrates, gives, what seems really to be the key of the dialogue, when he says — “Sokrates admits that he has no capacity for long speaking, and that he is no match therein for Protagoras. But as to dialectic debate, or administering and resisting cross-examination, I should be surprised if any one were a match for him. If Protagoras admits that on this point he is inferior, Sokrates requires no more: if he does not, let him continue the debate: but he must not lengthen his answers so that hearers lose the thread of the subject.”

Claim of a special locus standi and professorship for Dialectic, apart from Rhetoric.

This remark of Alkibiades, speaking altogether as a vehement partisan of Sokrates, brings to view at least one purpose — if not the main purpose — of Plato in the dialogue. “Sokrates acknowledges the superiority of Protagoras in rhetoric: if Protagoras acknowledges the superiority of Sokrates in dialectic, Sokrates is satisfied.”[74] An express locus standi is here claimed for dialectic, and a recognised superiority for its professors on their own ground. Protagoras professes to be master both of long speech and of short speech: but in the last he must recognise a superior.

[74] Plat. Prot. p. 336 C-D.

Sokrates is prevailed upon to continue, and invites Protagoras to question him.

Kritias, Prodikus, and Hippias all speak (each in a manner of his own) deprecating marked partisanship on either side, exhorting both parties to moderation, and insisting that the conversation shall be continued. At length Sokrates consents to remain, yet on condition that Protagoras shall confine himself within the limits of the dialectic procedure. Protagoras (he says) shall first question me as long as he pleases: when he has finished, I will question him. The Sophist, though at first reluctant, is constrained, by the instance of those around, to accede to this proposition.[75]

[75] Plat. Prot. pp. 337-338.