我不是因为快乐而唱歌,我因为唱歌而快乐。
The search for reciprocity laws is a fundamental theme in the history of mathematics.
"Truth is not what you want it to be; it is what it is, and you must bend to its power or live a lie."
现在不是去想缺少什么的时候,该想一想凭现有的东西你能做什么。
MODERATION. Avoid extreams; forbear resenting injuries so much as you think they deserve.