The play on his name which was made by his contemporary Herodicus (Aris.

Rhet.), 'thou wast ever bold in battle,' seems to show that the description of him is not devoid of verisimilitude.
When Thrasymachus has been silenced, the two principal respondents, Glaucon and Adeimantus, appear on the scene: here, as in Greek tragedy (cp.Introd.to Phaedo), three actors are introduced.

At first sight the two sons of Ariston may seem to wear a family likeness, like the two friends Simmias and Cebes in the Phaedo.

But on a nearer examination of them the similarity vanishes, and they are seen to be distinct characters.

Glaucon is the impetuous youth who can 'just never have enough of fechting' (cp.