Note 8 — Chapter XVI · ERASTÆ OR ANTERASTÆ — RIVALES.
Reading edition
Plat. Erast. 134 B-C. The literary Erastes says to Sokrates, “To you, I have no objection to concede this point, and to admit that my previous answer must be modified. But if I were to debate the point only with him (the athletic rival), I could perfectly well have defended my answer, and even worse answer still, for he is quite worthless (οὐδὲν γάρ ἐστι).”
This is a curious passage, illustrating the dialectic habits of the day, and the pride felt in maintaining an answer once given.