Research is to see what everybody else has seen, and to think what nobody else has thought.
Whatever a man does he must do first in his mind.
The key to happiness is not to get more, but to enjoy what we have and to fill the empty frame of our lives instead of enlarging it.
This paper of yours is so lightly written that you must have sweated terribly.
[A vitamin is] a substance you get sick from if you don't eat it.
Knowledge is a sacred cow, and my problem will be how we can milk her while keeping clear of her horns.