Peace cannot be kept by force; it can only be achieved by un... - Albert Einstein

"It is a very grave mistake to think that the enjoyment of seeing and searching can be promoted by means of coercion and a sense of duty. To the contrary, I believe it would be possible to rob even a healthy beast of prey of its voraciousness, if it were possible, with the aid of a whip, to force the beast to devour continuously, even when not hungry."

"Student: Dr. Einstein, Aren't these the same questions as last year's [physics] final exam?Dr. Einstein: Yes; But this year the answers are different."

"Never memorize something that you can look up."

"You never fail until you stop trying."

"Any fool can know. The point is to understand."