The only true wisdom is in knowing you know nothing.

The founders of a new colony, whatever Utopia of human virtue and happiness they might originally project, have invariably recognized it among their earliest practical necessities to allot a portion of the virgin soil as a cemetery, and another portion as the site of a prison.

The real challenge is to make something complex appear simple.

我认为对自己有幽默感并且不要把自己看得太重要是很重要的。