The uniformity of sequence is, in fact, in the physical sciences never assumed to express the relation of cause and effect, until the connection between the antecedent and consequent can be set forth abstractly in mathematical formulæ. The sequence of the planetary motions was discovered by Kepler, but it was reserved for Newton to prove the theoretical necessity of this motion and establish its mathematical relations. The sequence of sensations to impressions is well known, but the law of the sequence remains the desideratum in psychology.[92-1]
Science, therefore, has been correctly defined as “the knowledge of system.” Its aim is to ascertain the laws of phenomena, to define the “order in things.” Its fundamental postulate is that order exists, that all things are “lapped in universal law.” It acknowledges no exception, and it considers that all law is capable of final expression in quantity, in mathematical symbols. It is the manifest of reason, “whose unceasing endeavor is to banish the idea of Chance.”[93-1]
We thus see that its postulate is the same as that of the religious sentiment. Wherein then do they differ? Not in the recognition of chance. Accident, chance, does not exist for the religious sense in any stage of its growth. Everywhere religion proclaims in the words of Dante:—
“le cose tutte quante,
Hann’ ordine tra loro;”
everywhere in the more optimistic faiths it holds this order, in the words of St. Augustine, to be one “most fair, of excellent things.”[93-2]
What we call “the element of chance” is in its scientific sense that of which we do not know the law; while to the untutored religious mind it is the manifestation of divine will. The Kamschatkan, when his boat is lost in the storm, attributes it to the vengeance of a god angered because he scraped the snow from his shoes with a knife, instead of using a piece of wood; if a Dakota has bad luck in hunting, he says it is caused by his wife stepping over a bone and thus irritating a spirit. The idea of cause, the sentiment of order, is as strong as ever, but it differs from that admitted by science in recognizing as a possible efficient motor that which is incapable of mathematical expression, namely, a volition, a will. Voluntas Dei asylum ignorantiæ, is no unkind description of such an opinion.
So long as this recognition is essential to the life of a religious system, just so long it will and must be in conflict with science, with every prospect of the latter gaining the victory. Is the belief in volition as an efficient cause indispensable to the religious sentiment in general? For this vital question we are not yet prepared, but must first consider the remaining rational postulates it assumes. The second is
II. This order is one of intelligence.
By this is not meant that the order is one of an Intelligence, but simply that the order which exists in things is conformable to man’s thinking power,—that if he knows the course of events he can appreciate their relations,—that facts can be subsumed under thoughts. Whatever scheme of order there were, would be nothing to him unless it were conformable to his intellectual functions. It could not form the matter of his thought.[94-1]
Science, which deals in the first instance exclusively with phenomena, also assumes this postulate. It recognizes that when the formal laws, which it is its mission to define, are examined apart from their material expression, when they are emptied of their phenomenal contents, they show themselves to be logical constructions, reasoned truths, in other words, forms of intelligence. The votary who assumes the order one of volition alone, or volition with physical necessity, still assumes the volitions are as comprehensible as are his own; that they are purposive; that the order, even if not clear to him, is both real and reasonable. Were it not so, did he believe that the gods carried out their schemes through a series of caprices inconceivable to intelligence, through absolute chance, insane caprice, or blind fate, he could neither see in occurrences the signs of divine rule, nor hope for aid in obtaining his wishes. In fact, order is only conceivable to man at all as an order conformable to his own intelligence.