The difference between a man and his valet: they both smoke the same cigars, but only one pays for them.
Robert FrostAll thought is a feat of association; having what's in front of you bring up something in your mind that you almost didn't know you knew
Robert FrostIf you remember only one thing I've said, remember that an idea is a feat of association, and the height of it is a good metaphor. If you have never made a good metaphor, then you don't know what it's all about.
Robert Frost