当每一分钱都要精打细算，犯错的空间就消失了。
When every penny must be calculated, the margin for error evaporates.
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 elements of consciousness are to be discovered by careful experimentation.
The world is full of signs and wonders that come, and go, and if you are lucky you might catch the tail of one.
我不害怕失败，因为我知道它是成功的一部分。