The essence of a free government consists in an effectual control of rivalries.

数学之美不在于其复杂性，而在于其简洁性以及它揭示的关于宇宙的深刻真理。

创新不是要做完全新的东西，而是要比别人做得更好。

你们会墨守陈规，还是勇于创新？

At the close of our studies， we knew all the past of physics， but nothing of the present and the future.

Every time you make a choice, you are turning the central part of you into something a little different from what it was before.

传统与技术必须共舞才能进步。