The white races are, further, distinguished by an extraordinary attachment to life. They know better how to use it, and so, as it would seem, set a greater price on it; both in their own persons and those of others, they are more sparing of life. When they are cruel, they are conscious of their cruelty; it is very doubtful whether such a consciousness exists in the negro. At the same time, they have discovered reasons why they should surrender this busy life of theirs, that is so precious to them. The principal motive is honour, which under various names has played an enormous part in the ideas of the race from the beginning. I need hardly add that the word honour, together with all the civilizing influences connoted by it, is unknown to both the yellow and the black man. On the other hand, the immense superiority of the white peoples in the whole field of the intellect is balanced by an inferiority in the intensity of their sensations. In the world of the senses, the white man is far less gifted than the others, and so is less tempted and less absorbed by considerations of the body, although in physical structure he is far the most vigorous.[146] Such are the three constituent elements of the human race. I call them secondary types, as I think myself obliged to omit all discussion of the Adamite man. From the combination, by intermarriage, of the varieties of these types come the tertiary groups. The quaternary formations are produced by the union of one of these tertiary types, or of a pure-blooded tribe, with another group taken from one of the two foreign species. Below these categories others have appeared—and still appear. Some of these are very strongly characterized, and form new and distinct points of departure, coming as they do from races that have been completely fused. Others are incomplete, and ill-ordered, and, one might even say, anti-social, since their elements, being too numerous, too disparate, or too barbarous, have had neither the time nor the opportunity for combining to any fruitful purpose. No limits, except the horror excited by the possibility of infinite intermixture, can be assigned to the number of these hybrid and chequered races that make up the whole of mankind. It would be unjust to assert that every mixture is bad and harmful. If the three great types had remained strictly separate, the supremacy would no doubt have always been in the hands of the finest of the white races, and the yellow and black varieties would have crawled for ever at the feet of the lowest of the whites. Such a state is so far ideal, since it has never been beheld in history; and we can imagine it only by recognizing the undisputed superiority of those groups of the white races which have remained the purest.