Thus it only remains to treat in general of the question as to the reconcilableness of the idea of the origin of species through evolution, through gradual development, _in general_ with a theistic view of the world. In the first place, we wish to render evident the fact which is so often overlooked by the friends of monism and still more by theistic adversaries of the idea of evolution, that the idea of a development of species, and also of man, does not offer to theistic reasoning any new or any other difficulties than those which have been long present, and which had found their solution in the religious consciousness long before any idea of evolution disturbed the {266} mind. It is true, the question as to the origin of _mankind_ is, to speak in the language of natural history, a still unsolved _problem_; and the supposition of its gradual development out of the animal kingdom is still an _hypothesis_--one of all those attempts at solving this problem which still wait for confirmation or refutation. But there is another quite analogous question whose position has long ceased to be a mere problem, and whose solution is no longer a mere hypothesis; namely, the question as to the origin of the perfect human or any other organic _individual_. To speak again in the language of natural history, this origin is no longer a problem--that is, without regard to the obscurity in which the existence and origin of every creature, as to its last causes, is always and will always be veiled for us. We know that the human, and, in general, every organic individual, becomes that which it is through _development_. It begins the course of its being with the existence of a single cell, the egg, and goes through all stages of this development by wholly gradual and imperceptible transitions, so that the precise moment cannot exactly be fixed when any organ, any physical or psychical function, comes into existence, until perfect man is _developed_. Man has this mode of coming into existence in common with all organized beings, down to the lowest organisms which stand above the value and rank of a single cell. At this place, and with the design of our present discussion in view, we ought not to render the importance of this fact obscure by a teleological comparison of the different eggs and germs with one another. If we look upon that which is to _come out_ of the germs, and which certainly if prepared and present in the first vital functions of the {267} germ, although we are not able to observe, prove, and estimate it by means of the microscope and the retort, then of course the difference in the value of the germs must be immense; and from this point of view we certainly look upon the germ of man differently than upon the germ of an oyster. But here the question is not as to the differences of value of organisms: no scientist who remains within the limits of his realm, will ever deny them; but we treat of the question whether such valuable objects