你可以锁上你的图书馆；但没有门、没有锁、没有门闩能禁锢我思想的自由。
Lock up your libraries if you like; but there is no gate, no lock, no bolt that you can set upon the freedom of my mind.
我们无法改变任何事物，除非先接受它。谴责不会解放，反而会压迫。
Music can change the world because it can change people.
I don't believe in luck. I believe in hard work and persistence.
关注金字塔底层的企业可以在服务穷人的同时创造盈利业务。
The unity of mathematics is not an illusion but a reality waiting to be uncovered.
痛苦的生活源于错误的比较。