[pwhelan]

I think Bertrand Russell put it best when he wrote, "[t]he fundamental cause of trouble in the world today is that the stupid are cocksure while the intelligent are full of doubt."

I have found the smarter (and in the majority, not all) someone is, the more likely that person sees the complexity of things.

[raimondious]

That reminds me of Richard Feynman, who tried to keep a list of everything he didn't understand. Smart people pay more attention to what they don't know than what they do.