No man's knowledge here can go beyond his experience.

The right of a nation to kill a tyrant in case of necessity can never be doubted.

The love of democracy is that of equality.

程序测试可以用来显示错误的存在，但绝不能显示它们的不存在！

The key to success is not just technology, but how you use it to solve real problems.

计算机科学不仅仅是关于计算机的，就像天文学不仅仅是关于望远镜的。