一种善行没有内心的支持就不会长久，一种行为如果得不到自身的了解就无法树立。
我们是由星尘构成的。
The quarries we rehabilitate best become assets our grandchildren will thank us for.
Mathematics is not a deductive science—that's a cliché. When you try to prove a theorem, you don't just list the hypotheses and then start to reason. What you do is trial and error, experimentation, guesswork.
科学的乐趣在于旅程，而不仅仅是终点。
A wise man is superior to any insults which can be put upon him, and the best reply to unseemly behavior is patience and moderation.