And the believer may boldly claim science herself as his teacher. To hear some men talk, one would suppose that in the height of scientific discovery the mystery of man’s being had been found no mystery at all. A moment’s thought will dispel the illusion. The profound secret remains as dark and impenetrable as ever. Much has been done to explain the conditions of life; but nothing, absolutely nothing, to explain life itself. Nay, every step in advance has only increased the paradox and widened the gulf, so that the mystery is more complete than before.