I know that some learned men have asserted that between some human races and the larger apes there is only a slight difference of degree, and none of kind. As I absolutely reject such an insult to humanity, I may be also allowed to take no notice of the exaggerations by which it is usually answered. I believe, of course, that human races are unequal; but I do not think that any of them are like the brute, or to be classed with it. The lowest tribe, the most backward and miserable variety of the human species, is at least capable of imitation; and I have no doubt that if we take one of the most hideous bushmen, we could develop—I do not say in him, if he is already grown up, but in his son or at any rate his grandson—sufficient intelligence to make his acts correspond to a certain degree of civilization, even if this required some conscious effort of study on his part. Are we to infer that the people to which he belongs could be civilized on our model? This would be a hasty and superficial conclusion. From the practice of the arts and professions invented under an advanced civilization, it is a far cry from that civilization itself. … There is a great difference between imitation and conviction.