Biggest flaw of human nature

I think that human natures biggest flaw for me is that people are too arrogant. People are always thinking about themselves and think they're better than everyone else. As a matter a fact no no your not!! People each have their own skills and they might be better than how someone else does, but that doesn't mean u have to go around and brag and make peolpe feel bad for what they can do bacuz hey they might be able to do something better then u..