The man who writes about himself and his own time is the only man who writes about all people and about all time.

In mathematics, the journey is often more important than the destination.

"Mental processes are tools for solving life's problems."

The difference between good and great lies in the details.

所谓意念诚实，就是说不要自己欺骗自己，像厌恶难闻气味那样厌恶邪恶，像喜爱美丽的女子一样喜爱善良，这样才能说心安理得，所以君子在一个人独处时必定要谨慎。