种一棵树最好的时间是20年前，第二好的时间是现在。
The only power any government has is the power to crack down on criminals. Well, when there aren't enough criminals, one makes them. One declares so many things to be a crime that it becomes impossible for men to live without breaking laws.
The joy of mathematics comes from the act of creation, not just the result.
小人也有坦荡之处，因为无所忌讳；君子亦有忧戚之处，因终生都忧国忧民。
我是一个形式主义者。
Every time you make a choice, you are turning the central part of you into something a little different from what it was before.
事实上，把人看透并不是生活的全部。把人看错才是生活，一错再错，然后经过仔细的重新考虑，再次看错。