过去总是紧张的，未来是完美的。

合作是关键，没有任何一个实体能独自解决世界的挑战。

To be forgotten is worse than death.

信任的人不忠诚，忠诚的人不信任。 

在数学中，旅程往往比目的地更重要。

We don't read and write poetry because it's cute. We read and write poetry because we are members of the human race. And the human race is filled with passion. Medicine, law, business, engineering: these are noble pursuits and necessary to sustain life. But poetry, beauty, romance, love...these are what we stay alive for.