I don't rap for dead presidents; I'd rather see the president dead.

The beauty of mathematics only shows itself to more patient followers.

Efficiency in markets often depends on how well information is transmitted.

Free trade is the key to the prosperity of a nation.

There are other reasons --There are other reasons why it's perhaps harder now to feel calm than ever before. One of these, and it's paradoxical, because it's linked to something that's rather nice, is the hope we all have for our careers. Never before have expectations been so high about what human beings can achieve with their life span.

可持续性不是一种选择，而是长期成功的必要条件。