Know Thyself

Some of the all-time worst American Idol auditions (how do they even get in the front door?):











Okay, now that the laughter has subsided, there's a lesson here for all of us. The ancient Greeks believed that the first rule of wisdom was "Know thyself," and that's still a very good starting point.

How many times have we all thought we were oh-so-good at something, and given ourselves airs about it - when in reality, we were just fooling ourselves, and nobody else?