The only sensible ends of literature are, first, the pleasurable toil of writing; second, the gratification of one's family and friends; and lastly, the solid cash.

An artist’s job is to disturb the peace.

The improvement of understanding is for two ends: first, our own increase of knowledge; secondly, to enable us to deliver that knowledge to others.

"Books are the most powerful weapons in the world."

Every scientific discovery should be measured by its contribution to human welfare.

最好的原料才能做出最好的面包。就是这么简单。