大萧条不是资本主义的失败，而是政府政策的失败。

I think therefore I am has been discarded; we should say, I feel therefore I am.

The only purpose for which power can be rightfully exercised over any member of a civilized community， against his will， is to prevent harm to others.

相信一个人不仅仅是个人，这是多么危险的想法。

证明的目的是理解，而不仅仅是验证。