除非我能看到明确的50%收益路径，否则我从不购买任何东西。

One of the strongest motives that lead men to art and science， is escape from everyday life with its painful crudity and hopeless dreariness， such men make this cosmos and its construction in the pivot of their emotional life， in ordered to find the peace and the security， which they cannot find in the narrow whirlpool of personal experience.

接受责任的能力是衡量一个人的标准。

I don't know what's better gettin' laid or gettin' paid.

数学的本质在于它的自由。

计算复杂性的美在于它能够揭示问题的固有难度，而不管用于解决这些问题的具体算法是什么。

The typewriting machine, when played with expression, is not more annoying than the piano when played by a sister or near relations.