Confidence isn't. But what you have is ego; not confidence.

[ here, let him explain before sephiroth gets ahead of himself. ]

True confidence lies in a man's ability to face his own imperfections and overcome them. You have not overcome yours; you've only rejected them and convinced yourself that you have none.

[ he regards him pointedly, ] What you claim to be confidence is little more than bravado. [ essentially, he is just a very powerful baby in denial. ]