It has been my experience that confident people are humble and tolerant and joyful --what you're describing strikes me as insecure, actually.
They might sound all blustery and full of themselves, but they're trying to control how other people see them (and, as usual, giving 100% the opposite impression they're trying for).
For example: I'm confident and I don't apologize for my opinions, ever. I am a (certified by Mensa) genius. I make a lot of mistakes and find them both fascinating and humiliating. I absolutely don't know everything and one of my most common phrases is 'I haven't got a clue.'
A friend's mother, otoh, knows everything, but is a total attention junkie --she'll change her opinion depending on who's around and who she wants to impress. She's a liar --she'll make stuff up to sound (she thinks) important or smart. It's funny and pathetic to watch. 'That's not what you said last time...' Ha ha!
at 3:27 PM on Sep. 22, 2009