理论的任务在于用更简单的东西替代待解释的现象，其中包含所发生事件的本质。
The voice is a unique instrument because it carries not just sound, but the essence of who we are.
Collaboration between industry, government and society is essential for progress.
如果你借了什么东西，试着在归还的时候把它变得比你借到时的状态更好。清洁它、打磨它、填充它。
In mathematics, as in life, the most elegant solutions often arise from a deep understanding of the problem.
The lover's discourse is today of an extreme solitude.