The freshest of more recent scientific discoveries, evolution, is as much the child of the Mystic Sense as of inductive reasoning. It was the Mystic Sense of ancient philosophers, exploring the unseen, which first descried it on the horizon as the sailor at the masthead spies the distant land. Darwin was the helmsman who steered the ship to port. He rationalized it and applied it as a working hypothesis. It is instructive to note that Darwin began his career with a rather acute sense of the mystical. He had a keen appetite for poetry, and pictures, and the music in King’s College Chapel “gave him intense pleasure, so that his backbone would sometimes shiver.”[14] He even began preparation for Holy Orders. In later life the interests that meant so much to him in youth died. “My mind,” he says, “seems to have become a kind of machine for finding general laws out of large collections of facts, but why this should have caused the atrophy of that part of the brain alone, on which the higher tastes depend, I cannot conceive. A man with a mind more highly organized or better constituted than mine, would not, I suppose, have thus suffered; and if I had to live my life again, I would have made a rule to read some poetry and listen to some music at least once a week; for perhaps the parts of my brain now atrophied would thus have been kept active through use. The loss of these tastes is a loss of happiness, and may possibly be injurious to the intellect, and more probably to the moral character, by enfeebling the emotional part of our nature.” It would be more accurate, perhaps, to explain this loss, not by atrophy but by too narrow specialization. His Mystic Sense and powerful imagination were not dead. They were centred on a single object. Having developed his Mystic Sense in one or all the ways open to him, a man may abandon its use in every direction but one. Christian worship, poetry, music prepare the Mystic Sense for that daring creation of hypotheses characteristic of Darwin. Without his power of hypothesis he could never have become more than a mere collector of the jackdaw order. He is his own best witness to the truth of this assertion. He says, “I have steadily endeavored to keep my mind free so as to give up any hypothesis, however much beloved (and I cannot resist forming one on every subject), as soon as facts are shown to be opposite to it,” adding that he could not remember “a single first formed hypothesis which had not after a time to be given up or modified.”