If you don’t make mistakes, you’re not working on hard enough problems.

成功不是幸福的关键。幸福是成功的关键。如果你热爱你所做的事情，你就会成功。

The history of philosophy is not, like the history of the sciences, to be considered as a mere chronological record of discoveries and errors. It is the history of the human spirit in its endeavor to understand itself and its relation to the universe.

"Writing is a way of speaking without being interrupted."

It is better to be a human being dissatisfied than a pig satisfied； better to be Socrates dissatisfied than a fool satisfied.

The object of war is not to die for your country, but to make the other bastard die for his.

我总是告诉我的孩子们，‘如果你要做某件事，就要做好。如果你不打算做好，那就干脆别做。’