The strength of a nation's institutions is not just in their formal rules, but in the informal norms that govern behavior and the degree to which they are internalized by the population.
世界称之为不道德的书籍，是那些展示了世界自身羞耻的书籍。
The greatest thing about tomorrow is I will be better than I am today.
A mathematician is a person who can find analogies between theorems; a better mathematician is one who can see analogies between theories and the best mathematician can notice analogies between analogies.
学无止境的人比无所不知的人做得更好。
领导力不是发号施令，而是激励他人实现他们认为不可能的事情。
The knowledge that you have emerged wiser and stronger from setbacks means that you are, ever after, secure in your ability to survive. You will never truly know yourself, or the strength of your relationships, until both have been tested by adversity. Such knowledge is a true gift, for all that it is painfully won, and it has been worth more than any qualification I ever earned.