A good programmer is someone who always looks both ways before crossing a one-way street.

一个好的程序员是在穿过单行道前会两边都看的人。

The best way to predict the future is to invent it.

预测未来的最好方法就是创造未来。

To understand a program you must become both the machine and the program.

要理解一个程序，你必须同时成为机器和程序。

The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.

抽象的目的不是模糊，而是创建一个新的语义层次，在这个层次上可以绝对精确。

Programming is understanding.

编程就是理解。