The more a person limits himself, the more resourceful he becomes.
一个人越是限制自己，他就越有创造力。
To write is to resist. To resist is to write.
The use of a program to prove the 4-color theorem will not change mathematics - it merely demonstrates that the theorem, a challenge for a century, is probably not important to mathematics.
Knowledge has value only insofar as it contributes to the liberation of humanity.
民主是一种生活方式，而不是一种政治手段。
不要因为放弃而哭泣，要为了继续前进而哭泣。
我没时间恨那些恨我的人，因为我忙着爱那些爱我的人。
"To understand the present, we must first understand the past."