The real challenge in computer science is not to write programs, but to understand the nature of computation.

The deterioration of a government begins almost always by the decay of its principles.

The iron rule of nature is: you get what you reward for. If you want ants to come, you put sugar on the floor.

幸福不是相信我们不需要改变；而是意识到我们可以改变。

真相常常隐藏在阴影中，等待足够勇敢的人去揭露它。