Socrates said that a man doesn’t want what he doesn’t think he lacks. That is, if you believe you have the truth then why would you seek another truth? For example, if your unshakable starting condition is that the Ten Commandments are the final word on morality, or that the Koran is the perfect book that contains all the answers you’ll ever need, or that all human beings descended from Manu, you stop looking. Certainty is an enemy of truth: examination and reexamination are allies of truth.