and various interlocutors), and his writings on the subject had a major influence on later interpretations.

In Charmides 164d-165a, Critias argues that self-knowledge is the same as sophrosyne (as discussed above, this word literally means "soundness of mind", but is usually translated "temperance" or "self-control"). He claims that the purpose of the inscription at Delphi is to serve as Apollo's salutation to those who enter the temple - instead of "Hail!", he says "Be temperate!". Critias suggests