数学不知道种族或地理界限；对于数学来说，文化世界是一个国家。
Mathematics knows no races or geographic boundaries; for mathematics, the cultural world is one country.
史记
自然的足迹不仅要在其常规过程中追寻，还要在她似乎被迫迂回转折时探寻。
The general population doesn't know what's happening, and it doesn't even know that it doesn't know.
普通大众不知道正在发生什么，甚至不知道他们不知道。
Meeting energy demand while reducing emissions is the defining challenge of our time.
所有生而为人者都需要教育，因为他们注定要成为真正的人，而非野兽、愚钝的动物或木头。