"The difference between the university graduate and the autodidact lies not so much in the extent of knowledge as in the extent of vitality and self-confidence." -M. Kundera

“[T]here are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns – the ones we don't know we don't know." -Donald Rumsfeld