Behavior, as such, is not to be regarded as a mere chain of muscular contractions, but rather as a purposive and cognitive affair.
The people who are crazy enough to think they can change the world are the ones who do.
数学家的工作永无止境;总有更多的问题需要解决。
The most important thing is to be honest with yourself and with your audience.
Anyone who recovers from an addiction has my respect.
I'm not afraid to be myself, even if it means being different.