最好的程序是这样写的：计算机可以快速执行它们，人类可以清楚地理解它们。理想情况下，程序员是一位散文家，他使用传统的美学和文学形式以及数学概念来传达算法的工作原理，并说服读者结果是正确的。
The best programs are written so that computing machines can perform them quickly and so that human beings can understand them clearly. A programmer is ideally an essayist who works with traditional aesthetic and literary forms as well as mathematical concepts, to communicate the way that an algorithm works and to convince a reader that the results will be correct.
精神工作导致的疲劳不是因为工作的数量，而是因为工作的质量。
I want to be what I've always wanted to be—dominant.
The truth is: the natural world is changing. And we are totally dependent on that world. It provides our food, water and air. It is the most precious thing we have and we need to defend it.
"Causal inference requires careful thought about the assumptions underlying your analysis."