Startling though the assertion may be, it is a matter of fact, that man, naturally, in common with other carnivora, is actuated by an impulse to kill, and by a love of destroying life. It is positively true that there are many to whom the sight of suffering causes genuine pleasure, and in whom the passion to kill or torture is as strong as any other passion. Witness the number of boys who assemble around a sheep or pig when it is about to be killed, and who watch the struggle of the dying brute with hearts beating fast with pleasure, and eyes sparkling with delight. Often have I seen an eager crowd of children assembled around the slaughterhouses of French towns, absorbed in the expiring agonies of the sheep and cattle, and hushed into silence as they watched the flow of blood. The propensity, however, exists in different degrees. In some it is manifest simply as indifference to suffering, in others it appears as simple pleasure in seeing killed, and in others again it is dominant as an irresistible desire to torture and destroy. This propensity is widely diffused; it exists in children and adults, in the gross-minded and the refined., in the well-educated and the ignorant, in those who have never had the opportunity of gratifying it, and those who gratify it habitually, in spite of morality, religion, laws, so that it can only depend on constitutional causes. The sportsman and the fisherman follow a natural instinct to destroy, when they make wax on bird, beast, and fish: the pretence that the spoil is sought for the table cannot be made with justice, as the sportsman cares little for the game he has obtained, when once it is consigned to his pouch. The motive for his eager pursuit of bird or beast must be sought elsewhere; it will be found in the natural craving to extinguish life, which exists in his soul. Why does a child impulsively strike at a butterfly as it flits past him? He cares nothing for the insect when once it is beaten down at his feet, unless it be quivering in its agony, when he will watch it with interest. The child strikes at the fluttering creature because it has _life_ in it, and he has an instinct within him impelling him to destroy life wherever he finds it.