A social system is a network of relations between persons and between groups.
社会系统是个人与个人之间、群体与群体之间关系的网络。
想法到处都是，但知识非常稀缺。
Your 20s are the most defining decade of your life.
Liberty means responsibility. That is why most men dread it.
The power elite are not solitary rulers. Advisors and consultants, spokesmen and opinion-makers, are often the captains of their higher thought and decision.
我们不仅要造车，更要造好车。