Natural, then, has it been for men to go further, and to suppose that not only is power lodged in these, and in the other members of the heavenly host, but that it is living, intelligent, personal power; that these shining orbs are beings, or the manifestations of beings; exalted, mighty, immortal;—that they are gods.
But if these are gods, then it is sacrilegious, it is profane, to treat them as mere "things"; to observe them minutely in the microscope or telescope; to dissect them, as it were, in the spectroscope; to identify their elements in the laboratory; to be curious about their properties, influences, relations, and actions on each other.
And if these are gods, there are many gods, not One God. And if there are many gods, there are many laws, not one law. Thus scientific observations cannot be reconciled with polytheism, for scientific observations demand the assumption of one universal law. The wise king expressed this law thus:—
"The thing that hath been, it is that which shall be." The actual language of science, as expressed by Professor Thiele, a leading Continental astronomer, states that—
"Everything that exists, and everything that happens, exists or happens as a necessary consequence of a previous state of things. If a state of things is repeated in every detail, it must lead to exactly the same consequences. Any difference between the results of causes that are in part the same, must be explainable by some difference in the other part of the causes."[15:1]
The law stated in the above words has been called the Law of Causality. It "cannot be proved, but must be believed; in the same way as we believe the fundamental assumptions of religion, with which it is closely and intimately connected. The law of causality forces itself upon our belief. It may be denied in theory, but not in practice. Any person who denies it, will, if he is watchful enough, catch himself constantly asking himself, if no one else, why this has happened, and not that. But in that very question he bears witness to the law of causality. If we are consistently to deny the law of causality, we must repudiate all observation, and particularly all prediction based on past experience, as useless and misleading.
"If we could imagine for an instant that the same complete combination of causes could have a definite number of different consequences, however small that number might be, and that among these the occurrence of the actual consequence was, in the old sense of the word, accidental, no observation would ever be of any particular value."[16:1]
So long as men hold, as a practical faith, that the results which attend their efforts depend upon whether Jupiter is awake and active, or Neptune is taking an unfair advantage of his brother's sleep; upon whether Diana is bending her silver bow for the battle, or flying weeping and discomfited because Juno has boxed her ears—so long is it useless for them to make or consult observations.
But, as Professor Thiele goes on to say—
"If the law of causality is acknowledged to be an assumption which always holds good, then every observation gives us a revelation which, when correctly appraised and compared with others, teaches us the laws by which God rules the world."