社会系统是个人之间以及群体之间关系的系统。

One is not struck by the truth until prompted quite accidentally by some external event.

The search for reciprocity laws is a fundamental theme in the history of mathematics.

"What good's an opinion if you don't know?"

你给予的越多，得到的就越多。

We need to reshape our own perception of how we view ourselves. We have to step up as women and take the lead.

The best way to predict the future is to create it.