Books have said it, so the books have no value at all. What is relevant is what you are. The fact is that the world is you, not as a theory but in actuality; the world, the community, the society, the culture in which you have been brought up have been built through time by man. You are the result of that, and to bring about a change in the outward structure of the established corrupt order, one must change oneself inwardly completely. This is a logical, sane, observable fact.