Wow... you don't aim low, do ya... hahahahaha
It's hard to explain... when a person is confident, they know who they are, they know their qualities, their faults, and they are fine with them! You know? They are comfortable in their own shoes!!
When a person is proud (that ugly pride, I mean) it's pedantic, it's pretentious... I don't know, it's easy to notice the difference, but kinda hard to put to words... hahahaha
I guess I'll go with that chinese saying that goes like this "When a bucket is full, it is silent. But if a bucket is half full, it makes noise"