Dio 'Chrysostom' of Prusa on Orators at Public Games

Diogenes at the Isthmian games

Oration 8.9-11 (LCL, J. W. Cohoon)

That was the time, too, when one could hear crowds of wretched sophists around Poseidon’s temple shouting and reviling one another, and their disciples, as they were called, fighting with one another, many writers reading aloud their stupid works, many poets reciting their poems while others applauded them, many jugglers showing their tricks, many fortune-tellers interpreting fortunes, lawyers innumerable perverting judgment, and peddlers not a few peddling whatever they happen to have; no Corinthians, however, for they did not think it would be at all worth their while, since they were accustomed to see [Diogenes] every day in Corinth. The crowd that was gathered was composed of strangers, and each of these, after speaking or listening for a short time, went his way, fearing his refutation of their views.

Dio at the Olympic games

Oration 12.5 (LCL, J. W. Cohoon)

And since you likewise, though having so many delightful spectacles to behold, and so many things to hear—able orators, most charming writers of both verse and prose, and finally, like gorgeous peacocks, sophists in great numbers, men who are lifted aloft as on wings by their fame and disciples.