...That there is no such thing as being informed, and that the only thing a truly knowledgeable person knows is that he knows nothing. Perhaps nihilism in a certain sense.
Just read Plato's writings about him. You have to read them to fully understand the validity of Socrates' claims.
Have you not studied Socrates yet in your school/Uni? I cannot think of a greater shame for educational institutions to not at least devote a sentence to the most pivotal philosopher in the Western History. How old are you, if that is not a secret?
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