NINETEENTH TALK 377 quite cover every thing, and that is the holding of any belief without foundation. That also is a definition. Only if you should accept that, then we shall find that a great many people are holding actual truths as superstitions, because a great many people believe things which are quite true, but believe them on no rational foundation. It is one of the exercises which our Masters set to their pupils, to find out how much they really know and how much they only believe. If you try to do that in your own case, you will be surprised to find how little you know of your own self, and how very much you are only believing on the statements of other people. You may be quite justified, but it is quite true about vast numbers of facts in ordinary life—the rotation of the earth, the existence of foreign countries which you have never seen. You are justified in believing, only you must know whether you do believe, or whether you know. So with belief only: If you believe, then what do you believe, and on what ground ? And is this a reasonable ground ? In the case of the rotation of the earth, there are certain experiments which prove the facts. You read about certain foreign countries and, though you have not seen them yourself, you are justified in believing the statements made by those who have seen them. But in vast numbers of cases the things which you hear and believe have no such definite foundation. In many cases, what you hear about other people is the merest gossip; you have