心理学应该研究心智如何运作，而不仅仅是它包含什么。

In the short run, the market is a voting machine but in the long run, it is a weighing machine.

The limits of my language mean the limits of my world.

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.

我开始相信，一位伟大的教师是一位伟大的艺术家，而且像其他伟大的艺术家一样稀少。教学甚至可能是最伟大的艺术，因为媒介是人的思想和精神。