Note C — Chapter IV
Reading edition
It has been suggested—what will not party spirit contrive?—that these variations, called spontaneous by Darwin because not predetermined by heredity, might be spontaneous in a metaphysical sense, free acts with no material basis or cause whatsoever. Being free, these acts might deflect evolution—like Descartes’ soul acting on the pineal gland—into wonderful new courses, prevent dissolution, and gradually bring on the kingdom of Heaven, all as the necessary implication of the latest science and the most atheistic philosophy. It may not be needless to observe that if the variations were absolutely free, i.e., intrusions of pure chance, they would tend every which way quite as much as if they were mechanically caused; while if they were kept miraculously in line with some far-off divine event, they would not be free at all, but would be due to metaphysical attraction and a magic destiny prepared in the eternal; and so we should be brought round to Aristotelian physics again.