There are two things: intelligence, the faculty of knowing, and the knowledge that has been acquired and stored. The intelligence is capable of knowing, but it has no knowledge; the knowledge is gathered from without, from all the experience of the world and of life. Every individual has his accumulated store of experience, and so has every family, every nation, and every race. And it is this store of experience that is the stock of knowledge of that family, nation, or race. Therefore we say that this nation is like this and that nation is like that.