不要因为它结束了而哭泣，要因为它发生过而微笑。

最好的文学挑战我们以不同的方式看待世界。

The best solutions often come from those who are closest to the problem—our farmers.

We are just an advanced breed of monkeys on a minor planet of a very average star. But we can understand the Universe. That makes us something very special.

I used to walk down the street like I was a star... I want people to walk around delusional about how great they can be - and then to fight so hard for it every day that the lie becomes the truth.

Learning is essentially a matter of stimulus-response connections.

思想开阔，才能包容天下的千山万壑；思想谦虚，才能接受天下的真知大德；思想平明，才能纵论天下的善恶得失；思想深沉，才能讨论天下的学说哲理；思想稳定，才能应付天下的风云变幻。

自由社会的原则对于人类进步和繁荣至关重要。