勇气是所有美德中最重要的，因为没有勇气，你就无法始终如一地实践其他美德。
The first step towards philosophy is incredulity.
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.
