A social system is a system of relations between persons and between groups.
社会系统是个人之间以及群体之间关系的系统。
写作就是抵抗。
When basic needs are insecure, all idealism withers.
政治是每个公民的义务，逃避政治本身就是一种政治立场。
化学和物理的界面是奇迹发生的地方。
Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.