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.

The essence of computation lies in the transformation of information.

我喜欢狗。你总是知道狗在想什么。它有四种情绪：开心、难过、生气和专注。

我喜欢猪。狗崇拜人类。猫鄙视人类。猪对我们一视同仁。