To show that such is the case, by an appeal to facts, would be, in truth, to write the history of every natural process, and show its design. But it will be sufficient to consider only such cases as appear most decidedly to militate against my position, and to show that even these are not designed to cause evil or suffering.
How does it happen, then, you may inquire, that evil is the result of a multitude of contrivances and processes in nature? It is an incidental effect, I answer; that is, an effect happening aside from the main design of the contrivance. Take a few illustrations.
No one can doubt that the law of gravity is essential to the preservation and comfort of the world, and to the harmonious motions of the heavenly bodies. Yet how often does it give rise to frightful accidents to men and animals! But when they are crushed by falling bodies, or by falling themselves, who imagines this to be the design of gravitation? How clear that its real object is beneficial, and that the evil resulting from it is unavoidable in a world constituted like ours! Why the world is not constituted differently, is an inquiry which men may try to answer; but an answer is not important to my present object.
Take an example from the organic world. Every one is aware that without a nervous system in animals there would be no sensibility, nor sensation, and, of course, no enjoyment; and without these, animals would be unconscious of danger, and would not guard against it, nor withdraw from it. We are sure, therefore, that these two objects are the grand design of the nervous system, and, of course, it is a benevolent design. But the nervous system causes a great deal of suffering as well as pleasure. Obviously, however, this is only an incidental effect, which could not be prevented without a miracle; while the main design is to produce happiness and guard against evil.
It may be asked, however, by what principle we can determine what is the design of a contrivance, and what the incidental effect. Why select a part of the effects, and call them the object aimed at by the contriver, while we regard others as incidental, and merely permitted, not intended?
The principle on which we make this distinction is very clear. We judge of the design of a contrivance by its predominant tendencies and effects. If evil as often results as good, misery as often as happiness, we could not decide whether the design was benevolent or malevolent, or an indifference to both. But the benevolent tendency and effects of every natural contrivance are so obvious, and so immensely outweigh all its evil results, that we are compelled to admit the design of the Author of nature to be benevolent. And, therefore, when we see evil occasionally result from such contrivances, we are authorized to say that this is only an incidental effect; not, indeed, wholly undesigned, for we cannot doubt that God has a design in the permission of all evil. But for each particular arrangement and movement in nature we can discover a predominant and benevolent object.
Take another example from the human frame. In that frame we find a multitude of organs, nearly all of which are obviously adapted to a particular use. Now, the anatomist cannot lay his finger upon one of them, and say, This was intended to produce derangement and suffering in the system. Here is a muscle contrived to clog the operations of its neighbors; here a blood-vessel adapted to corrupt the blood and produce disease; here a gland whose object is to secrete a poisonous fluid, to contaminate the whole system; here a nerve made to produce pain; here a plexus of vessels suited to bring on disease. On the contrary, this anatomist perceives at once that all the organs of the animal system, and their collocation, are fitted in the best possible manner to produce health. It is obvious at a glance that this is their design.
But if such be the fact, how happens it that so few persons pass through life without disease? Is it all to be imputed to an abuse and perversion of the organs and powers of life? Not so, in my opinion. But those organs are all liable to disease; and when we see how delicate and complicated they are, we ought not to wonder that even the unavoidable causes of derangement should often bring it on. Yet, after all, health is the rule and the object, and disease only the exception. But I shall say more on this subject in another part of the argument.
Some one, however, who hears me, has doubtless ere this had his thoughts recur to the organs of carnivorous animals, the poisonous fangs of serpents, and the organs of the scorpion, the tarantula, and of insects, for the generation and protrusion of deadly poison. Here we have organs expressly provided for the destruction of other animals. That such is their design, no physiologist can doubt; and hence they are intended to produce suffering, and not happiness.
Is this an exactly correct statement of the case? True, suffering is the result of such organs; but the arrangement is intended to accomplish still higher purposes. The leading one is to procure food for sustenance, the other is self-defence. Both of these are essential to the animal’s continued existence. That suffering should be incidentally connected with instruments or organs so important, is no more difficult to explain than is the existence of evil any where. The object even of these contrivances, then, is beneficial. And if so, I know of no other example in nature so seemingly adverse to the position I have laid down, that the main object of every natural contrivance is benevolent in its origin and results. If this be so, how clearly does it indicate the character of the contriver to be benevolent!