The state, therefore, has not existed from all eternity. There have been societies that did without it, that had no notion of the state or state power. At a certain stage of economic development, which was necessarily bound up with the split of society into classes, the state became a necessity.

The world is a great painting, and we are the colors.

释义：与心意相投的朋友在一起，心里不会感到厌倦；与理解你的人交谈，会有说不完的话。

学习的最好方法是通过实践和犯错。