Likewise in every orthodox college the student is taught what his professors are pleased to call "the law of diminishing returns of agriculture." That is to say, additional labor expended upon a plot of land does not result in an equal increase of produce, and the increase grows less, until finally you come to a time when no matter how much labor you expend, you can get no more produce from that plot of land. All professors teach this, because fifty years ago it was true, and since that time it has not occurred to any professor of political science to visit a farm. And all the while, out in the suburbs of the city where the college is located, market gardeners are practicing on an enormous scale a new system of intensive agriculture which makes the "law of diminishing returns" a foolish joke. As Kropotkin shows in his book, "Fields, Factories and Workshops," the modern intensive gardener, by use of glass and the chemical test-tube, has developed an entirely new science of plant raising. He is independent of climate, he makes his own climate; he is independent of the defects of the soil, he would just as soon start from nothing and make his soil upon an asphalt pavement. By doubling his capital investment he raises, not twice as much produce, but ten times as much. If his methods were applied to the British Isles, he could raise sufficient produce on this small surface to feed the population of the entire globe. So we see that by simple and entirely harmless devices man is in position to restrict or to increase population as he sees fit. Also he is in position to raise food and produce the necessities of life for a hundred or thousand times as many people as are now on the earth. But superstition ordains involuntary parenthood, and capitalism ordains that land shall be held out of use for speculation, or shall be exploited for rent! And this is done in the name of "nature"--that old nature of the "tooth and claw," whose ancient plan it is "that they shall take who have the power, and they shall keep who can"; that ancient nature which has been so entirely suppressed and supplanted by civilized man, and which survives only as a ghost, a skeleton to be resurrected from the tomb, for the purpose of frightening the enslaved. When a predatory financier wishes a fur overcoat to protect himself from the cold, or when he hires a masseur to keep up the circulation of his blood, you do not find him troubling himself about the laws of "nature"; never will he mention this old scarecrow, except when he is trying to persuade the workers of the world to go on paying him tribute for the use of the natural resources of the earth! CHAPTER VI MAN THE REBEL (Shows the transition stage between instinct and reason, in which man finds himself, and how he can advance to a securer condition.)