Life has laws, which it is possible to ascertain; and with each bit of knowledge acquired, the environment is changed, the life becomes a new thing. Consider, for example, what a different place the world became to the man who discovered that the force which laid the forest in ashes could be tamed and made to warm a cave and make wild grains nutritious! In other words, man can create life, he can make the world and himself
To take command of life, to replace instincts by reasoned and deliberate acts, to make the world a conscious and ordered product -- that is the task of man. Sir Ray Lankester has set this forth with beautiful precision in his book, "The Kingdom of Man". We are, at this time, in an uncomfortable and dangerous transition stage, as a child playing with explosives. This child has found out how to alter his environment in many startling ways, but he does not yet know why he wishes to alter it, nor to what purpose. He finds that certain things are uncomfortable, and these he proceeds immediately to change. Discovering that grain fermented dispels boredom, he creates a race of drunkards; discovering that foods can be produced in profusion, and prepared in alluring combinations, he makes himself so many diseases that it takes an encyclopedia to tell about them. Discovering that captives taken in war can be made to work, he makes a procession of empires, which are eaten through with luxury and corruption, and fall into ruins again.
This is Nature's way; she produces without limit, groping blindly, experimenting ceaselessly, eliminating ruthlessly. It takes a million eggs to produce one salmon; it has taken a million million men to produce
What shall we do? Return to the method of the Spartans, exposing our sickly infants? We do not have to do anything so wasteful, because we can replace the killing of the unfit by a scientific breeding which will prevent the unfit from getting a chance at life. We can replace instinct by self-discipline. We can substitute for the regime of "Nature red in tooth and claw with ravin" the regime of man the creator, knowing what he wishes to be and how to set about to be it. Whether this can happen, whether the thing which we call civilization is to be the great triumph of the ages, or whether the human race is to go back into the melting pot, is a question being determined by an infinitude of contests between enlightenment and ignorance: precisely such a contest as occurs now, when you, the reader, encounter a man who has thought his way out to the light, and comes to urge you to perform the act of self-emancipation, to take up the marvellous new tools of science, and to make yourself, by means of