The only way to learn mathematics is to do mathematics.
孕育过一次邪恶的灵魂，此后便无法滋养善良。
我们拥有的最大资源是人类的聪明才智。
Simplicity is not the goal. It is the by-product of a good idea.
纯粹经济学与纯粹政治学之间的桥梁是公共选择理论。
I'm a feminist, but I think that romance has been taken away a bit for my generation. I think what people connect with in novels is this idea of an overpowering, encompassing love—and it being more important and special than anything and everything else.
我们想要的不是物质，而是背后的情感反馈，这赋予奢侈品一个崭新的意义。下次你看到那些开着法拉利跑车的人，你不要想“这个人很贪婪”，而是“这是一个无比脆弱、急需爱的人”，也就是说，同情他们，不要鄙视他们。
It's the rewards we want. It's a new way of looking at luxury goods. The next time you see somebody driving a Ferrari, don't think, "This is somebody who's greedy." Think, "This is somebody who is incredibly vulnerable and in need of love." Feel sympathy, rather than contempt.
结社的能力反过来取决于社区分享规范和价值观的程度，以及能够将个人利益服从于更大群体利益的程度。