数学是模式的科学，而自然利用了每一种可能的模式。

实现明天的唯一限制是我们今天的疑虑。

The state of nature has a law of nature to govern it, which obliges every one: and reason, which is that law, teaches all mankind, who will but consult it, that being all equal and independent, no one ought to harm another in his life, health, liberty, or possessions.

计算机科学中的挑战不仅仅是解决问题，而是理解为什么它们首先是问题。