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The Unseen World
by
But now, supposing some Platonic speculator were to come along and insist upon our leaving room for an alternative conclusion; suppose he were to urge upon us that all this process of material development, with the discovery of which our patient study has been rewarded, may be but the temporary manifestation of relations otherwise unknown between ourselves and the infinite Deity; suppose he were to argue that psychical qualities may be inherent in a spiritual substance which under certain conditions becomes incarnated in matter, to wear it as a perishable garment for a brief season, but presently to cast it off and enter upon the freedom of a larger existence;–what reply should we be bound to make, bearing in mind that the possibilities of existence are in no wise limited by our experience? Obviously we should be bound to admit that in sound philosophy this conclusion is just as likely to be true as the other. We should, indeed, warn him not to call on us to help him to establish it by scientific arguments; and we should remind him that he must not make illicit use of his extra-experiential hypotheses by bringing them into the treatment of scientific questions that lie within the range of experience. In science, for example, we make no use of the conception of a “spiritual substance” (or of a “material substance” either), because we can get along sufficiently well by dealing solely with qualities. But with this general understanding we should feel bound to concede the impregnableness of his main position.
I have supposed this theory only as an illustration, not as a theory which I am prepared to adopt. My present purpose is not to treat as an advocate the question of a future life, but to endeavour to point out what conditions should be observed in treating the question philosophically. It seems to me that a great deal is gained when we have distinctly set before us what are the peculiar conditions of proof in the case of such transcendental questions. We have gained a great deal when we have learned how thoroughly impotent, how truly irrelevant, is physical investigation in the presence of such a question. If we get not much positive satisfaction for our unquiet yearnings, we occupy at any rate a sounder philosophic position when we recognize the limits within which our conclusions, whether positive or negative, are valid.
It seems not improbable that Mr. Mill may have had in mind something like the foregoing considerations when he suggested that there is no reason why one should not entertain the belief in a future life if the belief be necessary to one’s spiritual comfort. Perhaps no suggestion in Mr. Mill’s richly suggestive posthumous work has been more generally condemned as unphilosophical, on the ground that in matters of belief we must be guided, not by our likes and dislikes, but by the evidence that is accessible. The objection is certainly a sound one so far as it relates to scientific questions where evidence is accessible. To hesitate to adopt a well-supported theory because of some vague preference for a different view is in scientific matters the one unpardonable sin,–a sin which has been only too often committed. Even in matters which lie beyond the range of experience, where evidence is inaccessible, desire is not to be regarded as by itself an adequate basis for belief. But it seems to me that Mr. Mill showed a deeper knowledge of the limitations of scientific method than his critics, when he thus hinted at the possibility of entertaining a belief not amenable to scientific tests. The hypothesis of a purely spiritual unseen world, as above described, is entirely removed from the jurisdiction of physical inquiry, and can only be judged on general considerations of what has been called “moral probability”; and considerations of this sort are likely, in the future as in the past, to possess different values for different minds. He who, on such considerations, entertains a belief in a future life may not demand that his sceptical neighbour shall be convinced by the same considerations; but his neighbour is at the same time estopped from stigmatizing his belief as unphilosophical.