选择理论忽略了我们所知道的关于人类的大部分知识。

不要被紧迫性的专横牵着鼻子走，做事应该要基于对重要性的评估。

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 best time to work on your marriage is before you have one.

Sustainability in mining isn't an option—it's a necessity for our future.

学习不以学识渊博为尊贵，贵在能够所学的为正道。

地壳在某种程度上是过去时间的博物馆。