When I look at the world I'm pessimistic, but when I look at people I am optimistic.

我们衡量成功的标准不应只是生产了多少桶油，还应包括避免了多少排放。

"A personality is a full Congress of orators and pressure-groups, of children, demagogues, communists, isolationists, war-mongers, mugwumps, grafters, prayer-meetings, spiritualists, and astrologers."

Intelligence is not the ability to store information, but to know how to use it.

"A great book is one that leaves you changed, with a new perspective on life and a deeper understanding of the human condition."

经验丰富的人读书用两只眼睛，一只眼睛看到纸面上的话，另一只眼睛看到纸的背面。