你不必总是知道你要去哪里，只要你继续前进。

Literature is the memory of humanity.

Every mathematical problem has a solution; it's just a matter of finding the right perspective.

It is not from the benevolence of the butcher， the brewer， or the baker that we expect our dinner， but from their regard to their own interest.

我们总是高估未来两年内会发生的变化，而低估未来十年内会发生的变化。不要让自己被麻痹而无所作为。