理解程序的最好方法是尝试改变它。

The principle goal of education in the schools should be creating men and women who are capable of doing new things, not simply repeating what other generations have done.

建筑的特性取决于它的使用方式，而不是它的外观。

最好的性能改进是从非工作状态到工作状态的转变。