The footsteps of Nature are to be traced, not only in her ordinary course, but when she deviates from it in her most extravagant excursions.

Psychology must be free from all metaphysical entanglements.

The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.

对我来说，编程不仅仅是一门重要的实用艺术。它也是知识基础中的一项巨大事业。

NP完全性的概念为理解问题的复杂性提供了一个强大的工具。

格式塔的组织原则对于理解我们如何感知周围世界至关重要。