In The Apology, the Greek philosopher Plato wrote that the oracle at Delphi had pronounced Socrates the wisest man in Athens.
No one was more astonished and disbelieving than Socrates himself. So, he immediately set out to disprove the oracle by finding a wiser man. Here is what Socrates found as he met a few supposedly wise men…
I went to one who had the reputation of wisdom, and observed to him – his name I need not mention; he was a politician whom I selected for examination – and the result was as follows: When I began to talk with him, I could not help thinking that he was not really wise, although he was thought wise by many, and wiser still by himself; and I went and tried to explain to him that he thought himself wise, but was not really wise; and the consequence was that he hated me, and his enmity was shared by several who were present and heard me.