一两次接触容易处理好关系，长期在一起关系就难处了。

人生之道不要繁杂，繁杂就会头绪众多，就会困扰，就会带来忧患，这样，就不能保持自心清净，更谈不上救济世道人心了。

History is that certainty produced at the point where the imperfections of memory meet the inadequacies of documentation.

Leadership is about making others better as a result of your presence and making sure that impact lasts in your absence.

Don't interfere with anything in the Constitution. That must be maintained, for it is the only safeguard of our liberties. And not to Democrats alone do I make this appeal, but to all who love these great and true principles.

We are healed of a suffering only by experiencing it to the full.

数学中的合作是必不可少的；思想的交流导致了任何单一思维都无法独自实现的突破。

记忆是脆弱的——容易被扭曲，容易丢失。