Says a distinguished professor of biology[83]: "Familiarity with development does not remove the real mystery which lies back of it. The development of a human being, of a personality, from a germ cell seems to me the climax of all wonders, greater even than that involved in the evolution of a species or the making of a world." He remarks that "if personality is determined by heredity alone, all teaching, preaching, government, is useless." The only hope for the race, he says, is in eugenics--always supposing that enough freedom is left to carry out its program. 83: E. G. Conklin: "Heredity and Responsibility," in _Science_, January 10, 1913. If the birth of the individual and the full story of his origin is thus enveloped in mystery for theologian, poet, philosopher and even scientist, it is not to be expected that the problem of the origin of the human race can be solved by a neat formula. Here the mystery of the birth of the individual from parents of the same species is intensified many fold. Here the problems of mind and body, of their genetic and metaphysical relations to each other, and of the ultimate relation of the spirit world to each, press for solution before there can be any full and final answer to the question of the origin of man. Is it any wonder that the single occurrence upon which was based the birth of all future generations which have peopled the earth should be thought to involve more than can be included in any scientific hypothesis?[84] 84: "No other animal types," says Wallace, "make the slightest approach to any of these high faculties [such as are seen in man] or show any indication of the possibility of their development. In very many directions they have reached a limit of organic perfection beyond which there is no apparent scope for further advancement. Such perfect types we see in the dog, the horse, the cat-tribe, the deer and the antelopes, the elephants, the beaver and the greater apes; while many others have become extinct because they were so highly specialized as to be incapable of adaptation to new conditions. All these are probably about equal in their mental faculties, and there is no indication that any of them are or have been progressing towards man's elevation, or that such progression, either physically or mentally, is possible."--"Man's Place in the Universe," 3d (popular) ed., pp. 328, 329.