社会结构的研究是对社会关系系统的研究。

"Reading is an act of empathy."

气候研究不仅是一个科学问题，也是一个社会问题。

It is often said that before you die your life passes before your eyes. It is in fact true. It's called living.

The true spirit of delight, the exaltation, the sense of being more than Man, which is the touchstone of the highest excellence, is to be found in mathematics as surely as in poetry.

To write is to resist the erasure of memory.

没有缺乏机会以你所爱为生；只有缺乏决心使之实现。