Further, we can see, at some periods of a people’s existence, a strong oscillation between the two principles, one of which alternately prevails over the other. These changes depend on the mingling of blood that inevitably takes place at various times. Their consequences are very important, and sensibly alter the character of the civilization by impairing its stability. I can thus divide peoples into two classes, as they come predominantly under the action of one or other of these currents; though the division is, of course, in no way absolute. At the head of the “male” category I put the Chinese; the Hindus being the prototype of the opposite class. After the Chinese come most of the peoples of ancient Italy, the Romans of the Early Republic, and the Germanic tribes. In the opposite camp are ranged the nations of Egypt and Assyria. They take their place behind the men of Hindustan. When we follow the nations down the ages, we find that the civilization of nearly all of them has been modified by their oscillation between the two principles. The peoples of Northern China were at first almost entirely materialistic. By a gradual fusion with tribes of different blood, especially those in the Yunnan, their outlook became less purely utilitarian. The reason why this development has been arrested, or at least has been very slow, for centuries past, is because the “male” constituents of the population are far greater in quantity than the slight “female” element in its blood. In Northern Europe the materialistic strain, contributed by the best of the Germanic tribes, has been continually strengthened by the influx of Celts and Slavs. But as the white peoples drifted more and more towards the south, the male influences gradually lost their force and were absorbed by an excess of female elements, which finally triumphed. We must allow some exceptions to this, for example in Piedmont and Northern Spain. Passing now to the other division, we see that the Hindus have in a high degree the feeling of the supernatural, that they are more given to meditation than to action. As their earliest conquests brought them mainly into contact with races organized along the same lines as themselves, the male principle could not be sufficiently developed among them. In such an environment their civilization was not able to advance on the material side as it had on the intellectual. We may contrast the ancient Romans, who were naturally materialistic, and only ceased to be so after a complete fusion with Greeks, Africans, and Orientals had changed their original nature and given them a totally new temperament. The internal development of the Greeks resembled that of the Hindus.