NOTE ON NON-THEISTIC IDEALISM
It may perhaps be well for the sake of greater clearness to summarize my objections—those already mentioned and some others—to the system of Dr. McTaggart, which I admit to be, for one who has accepted the idealistic position that matter does not exist apart from Mind, the only intelligible alternative to Theism. His theory is, it will be remembered, that ultimate Reality consists of a system of selves or spirits, uncreated and eternal, forming together a Unity, but not a conscious Unity, so that consciousness exists only in the separate selves, not in the whole:
(1) It is admitted that the material world exists only in and for Mind. There is no reason to think that any human mind, or any of the other minds of which Dr. McTaggart's Universe is composed, knows the whole of this world. What kind of existence then have the parts of the Universe which are not known to any mind? It seems to me that Dr. McTaggart would be compelled to admit that they do not exist at all. The world postulated by Science would thus be admitted to be a delusion. This represents a subjective Idealism of an extreme and staggering kind which cannot meet the objections commonly urged against all Idealism.
(2) Moreover, the world is not such an intellectually complete system as Dr. McTaggart insists that it must be, apart from the relations of its known parts to its unknown parts. If there are parts which are unknown to any mind, and which therefore do not exist at all, it is not a system at all.
(3) If it be said that all the spirits between them know the world—one knowing one part, another another—this is a mere hypothesis, opposed to all the probabilities suggested by experience, and after all would be a very inadequate answer to our difficulties. Dr. McTaggart insists {124} that the world of existing things exists as a system. Such existence to an Idealist must mean existence for a mind; a system not known as a system to any mind whatever could hardly be said to exist at all.
(4) If it be suggested (as Dr. McTaggart was at one time inclined to suggest) that every mind considered as a timeless Noumenon is omniscient, though in its phenomenal and temporal aspect its knowledge is intermittent and always limited, I reply (a) the theory seems to me not only gratuitous but unintelligible, and (b) it is open to all the difficulties and objections of the theory that time and change are merely subjective delusions. This is too large a question to discuss here: I can only refer to the treatment of the subject by such writers as Lotze (see above) and M. Bergson. I may also refer to Mr. Bradley's argument (Appearance and Reality, p. 50 sq.) against the theory that the individual Ego is out of time.
(5) The theory of pre-existent souls is opposed to all the probabilities suggested by experience. Soul and organism are connected in such a way that the pre-existence of one element in what presents itself and works in our world as a unity is an extremely difficult supposition, and involves assumptions which reduce to a minimum the amount of identity or continuity that could be claimed for the Ego throughout its successive lives. A soul which has forgotten all its previous experiences may have some identity with its previous state, but not much. Moreover, we should have to suppose that the correspondence of a certain type of body with a certain kind of soul, as well as the resemblance between the individual and his parents, implies no kind of causal connexion, but is due to mere accident; or, if it is not to accident, to a very arbitrary kind of pre-established harmony which there is nothing in experience to suggest, and which (upon Dr. McTaggart's theory) there is no creative intelligence to pre-establish. The theory cannot be absolutely refuted, but all Dr. McTaggart's ingenuity has not—to my own mind, {125} and (I feel sure) to most minds—made it seem otherwise than extremely difficult and improbable. Its sole recommendation is that it makes possible an Idealism without Theism: but, if Theism be an easier and more defensible theory, that is no recommendation at all.
(6) Dr. McTaggart's whole theory seems to me to waver between two inconsistent views of Reality. When he insists that the world consists of a system or Unity, he tends towards a view of things which makes the system of intellectual relations constituting knowledge or Science to be the very reality of things: on such a view there is no impossibility of an ultimate Reality not known to any one mind. But Dr. McTaggart has too strong a hold on the conviction of the supremely real character of conscious mind and the unreality of mere abstractions to be satisfied with this view. If there is no mind which both knows and wills the existence and the mutual relations of the spirits, the supreme reality must be found in the individual spirits themselves; yet the system, if known to none of them, seems to fall outside the reality. The natural tendency of a system which finds the sole reality in eternally self-existent souls is towards Pluralism—a theory of wholly independent 'Reals' or 'Monads.' Dr. McTaggnrt is too much of a Hegelian to acquiesce in such a view. The gulf between the two tendencies seems to me—with all respect—to be awkwardly bridged over by the assumption that the separate selves form an intelligible system, which nevertheless no one really existent spirit actually understands. If a system of relations can be Reality, there is no ground for assuming the pre-existence or eternity of individual souls: if on the other hand Reality is 'experience,' an unexperienced 'system' cannot be real, and the 'unity' disappears. This is a line of objection which it would require a much more thorough discussion to develope.
(7) On the view which I myself hold as to the nature of Causality, the only intelligible cause of events is a Will. The events of Dr. McTaggart's world (putting aside the very {126} small proportion which are due, in part at least, to the voluntary action of men or spirits) are not caused at all. His theory is therefore open to all—and more than all—the objections which I have urged in Lecture II. against the theory which explains the Universe as the thought of a Mind but not as caused by that Mind.
(8) It is just possible that some one might suggest that the first of my objections might be met by the allegation that there is nothing in the scheme which forbids us to suppose that the whole of Nature is known to more than one of the spirits which make up Reality, though not to all, or indeed any, of the human and non-human spirits known to us. I should reply (a) that the considerations which lead to the hypothesis of one omniscient Being do not require more than one such spirit, and entia non sunt multiplicanda praeter necessitatem; (b) such a scheme would still be open to Objection 7. If it is a speculative possibility that all Nature may exist in the knowledge of more than one spirit, it cannot well be thought of as willed by more than one spirit. If the Universe, admitted to form an ordered system, is caused by rational will at all, it must surely be caused by one Will. But perhaps a serious discussion of a polytheistic scheme such as this may be postponed till it is seriously maintained. It has not been suggested, so far as I am aware, by Dr. McTaggart himself.