NP完全性的概念为理解计算问题的复杂性提供了一个强大的工具。

With a library you are free, not confined by temporary political climates. It is the most democratic of institutions because no one - but no one at all - can tell you what to read and when and how.

The study of mind is the study of life's coping mechanisms.

The strength of a team lies in the diversity of its members.

伟大的事情从来不会来自舒适区。

对来自学生的批评应该本着友好的精神来接受，学习材料的积累不应该扼杀学生的独立性。

We must invest in technology that not only improves efficiency but also reduces environmental impact.

野外的规则是适者生存。你必须强壮、聪明、适应力强才能生存下来。