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.

I don't think you need to be sad to write a sad song.

即便真理没有带来便利，也要恪守它，因为你若企图掩盖真理，会带来更多的麻烦。即使真相并不令人愉快，也一定要做到诚实，因为掩盖真相往往要费更大力气。

The problem with marriage is that it ends every night after making love, and it must be rebuilt every morning before breakfast.

人类能够达到的最高活动是为了理解而学习，因为理解就是自由。