一个好的数学家是能看到定理之间类比的人;一个伟大的数学家是能看到类比之间的类比的人。
Maybe God wants us to meet a few wrong people before meeting the right one, so that when we finally meet the person, we will know how to be grateful。
穷人的真正悲剧在于他们除了等待富人给予他们一些东西外,什么也做不了。
The study of psychology is the study of life's problem-solving mechanisms.