Full Idea
In the 'Gorgias' Socrates is still supremely confident that the elenchus is the final arbiter of moral truth.
Clarification
'Elenchus' is a form of philosophical interrogation
Gist of Idea
In "Gorgias" Socrates is confident that his 'elenchus' will decide moral truth
Source
comment on Plato (Gorgias [c.378 BCE]) by Gregory Vlastos - Socrates: Ironist and Moral Philosopher p.117
Book Reference
Vlastos,Gregory: 'Socrates: Ironist and Moral Philosopher' [CUP 1992], p.117