A smart man makes a mistake, learns from it, and never makes that mistake again. But a wise man finds a smart man and learns from him how to avoid the mistake altogether.
Roy H. Williams
I know that I am intelligent, because I know that I know nothing.
Socrates
Your intellect may be confused, but your emotions will never lie to you.
Roger Ebert
If everyone is thinking alike, then somebody isn't thinking.
George S. Patton
Genius is the ability to renew one's emotions in daily experience.
Paul Cezanne