This is founded on the principle of a sufficient cause. Syllogistically stated, the argument stands thus: Every effect must have an adequate cause. The world is an effect. Therefore the world must have had a cause outside of itself and adequate to account for its existence.
A. Causation.
The validity and the meaning of this argument, depend on the sense given to the words effect and cause. If an effect be correctly defined to be an event, or product, not due to anything in itself, but produced by something out of itself; and if by cause be understood, an antecedent to whose efficiency the effect is due; then the conclusion is inevitable, that the existence of the world supposes the existence of a cause adequate to its production, provided it can be proved that the world is an effect, *i.e.,*that it is not self-caused or eternal.
It is well known, however, that since Hume propounded his theory, all efficient causes have been discarded by a large class of philosophers. The senses take cognizance of nothing but the sequence of events. One follows another. That which uniformly precedes, we call cause; that which uniformly follows, we call the effect. As sequence is all the senses detect, that is all we have any right to assume. The idea that there is anything in the antecedent which determines the effect to be as it is and no otherwise, is altogether arbitrary. A cause, therefore, is nothing but an invariable antecedent, and an effect an invariable consequent.
Mr. Stuart Mill1 modified Hume’s definition of cause as Dr. Brown of Edinburgh had done before him. The former says, “It is necessary to our using the word cause, that we should believe not only that the antecedent always has been followed by the consequent, but that, as long as the present constitution of things endures, it always will be so.” So Dr. Brown2 says, “A cause in the fullest definition which it philosophically admits of, may be said to be that which immediately precedes any change, and which, existing at any time in similar circumstances, has been always, and will be always immediately followed by a similar change.” It is obvious that this definition is not only arbitrary, but that it is inconsistent with the fundamental principles of Hume’s philosophy, and that of his followers, namely, that all our knowledge is founded on experience. Experience relates to the past. It cannot guarantee the future. If we believe that a given consequent always will follow a given antecedent, there must be some other ground for that conviction than that it always has done so. Unless there be something in the nature of the antecedent to secure the sequence of the effect, there is no rational ground for the belief that the future must be like the past.
The Common Doctrine on the Subject.
The common doctrine on this subject includes the following points. (1.) A cause is something. It has a real existence. It is not merely a name for a certain relation. It is a real entity, a substance. This is plain because a nonentity cannot act. If that which does not exist can be a cause, then nothing can produce something, which is a contradiction. (2.) A cause must not only be something real, but it must have power or efficiency. There must be something in its nature to account for the effects which it produces. (3.) This efficiency must be adequate; that is, sufficient and appropriate to the effect. That this is a true view of the nature of a cause is plain. (1.) From our own consciousness. We are causes. We can produce effects. And all three of the particulars above mentioned are included in our consciousness of ourselves as cause. We are real existences; we have power; we have power adequate to the effects which we produce. (2.) We can appeal to the universal consciousness of men. All men attach this meaning to the word cause in their ordinary language. All men assume that every effect has an antecedent to whose efficiency it is due. They never regard mere antecedence, however uniform in the past, or however certain in the future, as constituting a causal relation. The succession of the seasons has been uniform in the past, and we are confident that it will continue uniform in the future; yet no man says that winter is the cause of summer. Every one is conscious that cause expresses an entirely different relation from that of mere antecedence. (3.) This view of the nature of causation is included in the universal and necessary belief, that every effect must have a cause. That belief is not that one thing must always go before another thing; but that nothing can occur, that no change can be produced, without the exercise of power or efficiency somewhere; otherwise something could come out of nothing.