The theory of "natural selection" does not enable us to dispense with final causes. This theory requires the existence of forces working according to the law of heredity and the law of variation, together with a suitable environment. But whence came this arrangement, by which a law of heredity was combined with a law of variation, and both made to act in a suitable environment? Here we find again the three marks of a designing intelligence: preparation, combination, adaptation. That intelligence which combines and adapts means to ends is merely remanded to the initial step of the process, instead of being allowed to act continuously along the whole line of evolution. Even though you can explain by the action of mechanical forces the whole development of the solar system and its contents from a nebula, you have only accumulated all the action of a creative intelligence in the nebula itself. Because I can explain the mechanical process by which a watch keeps time, I have not excluded the necessity of a watchmaker. Because, walking through my neighbor's grounds, I come upon a water-ram pumping up water by a purely mechanical process, I do not argue that this mechanism makes the assumption of an inventor superfluous. In human industry we perceive a power capable of using the blind forces of Nature for an intelligent end; which prepares beforehand for the intended result; which combines various conditions suited to produce it, and so creates order, system, use. But we observe in Nature exactly similar examples of order, method, and system, resulting from a vast number of combinations, correlations, and adaptations of natural forces. Man himself is such a result. He is an animal capable of activity, happiness, progress. But innumerable causes are combined and harmonized in his physical frame, each necessary to this end. As the human intelligence is the only power we know capable of accomplishing such results, analogy leads us to assume that a similar intelligence presides over the like combinations of means to ends in Nature. If any one questions the value of this argument from analogy, let him remember how entirely we rely upon it in all the business of life. We _know_ only the motives which govern our own actions; but we infer by analogy that others act from similar motives. Knowing that we ourselves combine means designed to effect ends, when we see others adapting means to ends, we assume that they act also with design. Hence we have a right to extend the argument further and higher.