(Or method of elenchos or Socratic debate) A dialectic method of inquiry, largely applied to the examination of key moral concepts and first described by Plato in the Socratic Dialogues. For this, Socrates is customarily regarded as the father and fountainhead for ethics or moral philosophy.

It is a form of philosophical enquiry. It involves two or more speakers, usually with one as the master (or wise one) and the others as students or fools. The method is credited to Socrates, who began to engage in such discussion with his fellow Athenians after a visit to the Oracle of Delphi.