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

一個好的程序員是在穿過單行道前會兩邊都看的人。

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

預測未來的最好方法就是創造未來。

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

要理解一個程序，你必須同時成為機器和程序。

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，而是創建一個新的語義層次，在這個層次上可以絕對精確。

Programming is understanding.

編程就是理解。