最好的文章，是与自然造化的规律相通的。

The existence of law is one thing; its merit or demerit is another.

Collaboration in mathematics is essential; the exchange of ideas leads to breakthroughs that no single mind could achieve alone.

Society can and does execute its own mandates， and if it issues wrong mandates instead of right， or any mandates at all in things with which it ought not to meddle， it practices a social tyranny more formidable than many kinds of political oppression， since， though not usually upheld by such extreme penalties， it leaves fewer means of escape， penetrating much more deeply into the details of life， and enslaving the soul itself.

The only real failure in life is not to be true to the best one knows.

晏子春秋