没有好的用户体验，再好的商业模式都是空谈。

There is no friend as loyal as a book.

理解土地就是理解我们自己。

We must build a world in which there shall be no economic domination.

Prime numbers are what is left when you have taken all the patterns away. I think prime numbers are like life. They are very logical but you could never work out the rules, even if you spent all your time thinking about them.

市场足够有效，以至于大多数投资者在长期内不会超越市场。