Now, since Schäffle wrote his book on the structure of the social organism, all sorts of attempts have been made to trace out analogies between the organic structure of a natural creature,--a human being, say,--and of a community of human beings. People have tried to map out the body social into cells, network of cells, tissues and so forth. Only a little while ago, there was a book published by Méray, "World Mutations," in which various natural science facts and laws were simply transferred to what is supposed to be man's social organism. That sort of analogy-game has nothing whatever to do with what is meant here; and anyone who mistakes what is said above for just such another play upon analogies between the natural and the social organism, has plainly not entered into the spirit of these observations. The present comparison is not an attempt to take some natural science truth and transplant it into the social system. Its object is quite different:--namely, to use the human body as an object lesson for training human thought and feeling to a sense of what organic life requires, and then to apply this perceptive sense to the body social. If one simply transfers to the body social something one thinks one has found out about the human body,--as is commonly done,--it merely shews that one is not willing to acquire the faculties needed for studying the social organism in the way one has to study the natural organism,--that is, as a thing by itself, with special laws of its own. It might again be thought, that this manner of depicting the social organism arises from the belief that it should be "built up" after some cut-and-dried theory borrowed from natural science. Nothing could be further from all that is here in question. What I am trying to shew is something very different. The present crisis in the history of mankind demands the development in every single human being of certain faculties of apprehension, of which the first rudiments must be started by the schools and system of education,--like the first four rules of arithmetic. Hitherto, the body social received its older forms from something that never entered consciously into the life of the human soul; but in the future this force will cease to be active. Fresh evolutionary impulses are coming in, and from now on will be active in human life; and it is part of them, that every individual should be required to have these faculties of apprehension, just as each individual has long been required to have a certain measure of education. From now on, it is necessary that the individual should be trained to have a healthy sense of how the forces of the body social must work in order for it to live. People must learn to feel, that it would be unhealthy, anti-social, not to possess such sense of what the body social needs and to want to take one's place in it.