A boy who remembers his father who rode a horse, who rode it well and treated it well, will know that the relation can be satisfactory and will be satisfied. He will be all the more indignant at the ill-treatment of horses because he knows how they ought to be treated; but he will see nothing but what is normal in a man riding on a horse. He will not listen to the great modern philosopher who explains to him that the horse ought to be riding on the man.