要成为一个好的数学家，你需要既有直觉又有严谨。
有的时候，一支亲切的乐曲，一处幽静地方的潺潺水声，一朵花的芳香，甚而只是说出一个熟悉的字眼，会突然唤起一些模糊的记忆，令人想起一些今生不曾出现过的场景，它们会像微风一样飘散，仿佛刹那间唤醒了对某种久已别离的、比较快乐的往事，而这种回忆单靠冥思苦想是怎么也想不起来的。
做伟大工作的唯一途径就是热爱你所做的事。
写作就是抵抗时间的侵蚀，与遗忘抗争。
The most important property of a program is whether it accomplishes the intention of its user.
We search through historical data looking for anomalous patterns that we would not expect to occur at random. Our scheme is to analyze data and markets to test for statistical significance and consistency over time. Once we find one， we test it for statistical significance and consistency over time. After we determine its validity， weask， ‘Does this correspond to some aspect of behavior that seems reasonable？’
A company's culture is defined by the actions of its leaders.