Facts are not the less facts because they are not facts of sense; materialism is not necessarily enlightenment; it is possible to be at once chimerical and gross.
We may venture, without any ingratitude to science as the source of material benefits and the training school of inductive reason, to doubt whether the great secret of the moral world is likely to be discovered in her laboratory, or to be revealed to those minds which have been imbued only with her thoughts, and trained in her processes alone. Some, indeed, among the men of science who have given us sweeping theories of the world, seem to be not only one-sided in their view of the facts, leaving out of sight the phenomena of our moral nature, but to want one of the two faculties necessary for sound investigation. They are acute observers, but bad reasoners. And science must not expect to be exempt from the rules of reasoning. We can not give credit for evidence which does not exist, because if it existed it would be of a scientific kind; nor can we pass at a bound from slight and precarious premises to a tremendous conclusion, because the conclusion would annihilate the spiritual nature and annul the divine origin of man.