> Man must not fall into the error of thinking that he was ever meant to become lord and master of Nature. A lopsided education has helped to encourage that illusion. Man must realize that a fundamental law of necessity reigns throughout the whole realm of Nature and that his existence is subject to the law of eternal struggle and strife. He will then feel that there cannot be a separate law for mankind in a world in which planets and suns follow their orbits, where moons and planets trace their destined paths, where the strong are always the masters of the weak and where those subject to such laws must obey them or be destroyed. Man must also submit to the eternal principles of this supreme wisdom. He may try to understand them but he can never free himself from their sway.