The doctrine of Yang Chu is summed up as "every man for himself," and is therefore diametrically opposed to that of Mo Ti. A questioner one day asked him if he would consent to part with a single hair in order to benefit the whole world. Yang Chu replied that a single hair could be of no possible benefit to the world; and on being further pressed to say what he would do if a hair were really of such benefit, it is stated that he gave no answer. On the strength of this story, Mencius said: "Yang's principle was, every man for himself. Though by plucking out a single hair he might have benefited the whole world, he would not have done so. Mo's system was universal love. If by taking off every hair from the crown of his head to the sole of his foot he could have benefited the empire, he would have done so. Neither of these two doctrines is sound; a middle course is the right one." The origin of the visible universe is a question on which Chinese philosophers have very naturally been led to speculate. Legend provides us with a weird being named P'an Ku, who came into existence, no one can quite say how, endowed with perfect knowledge, his function being to set the gradually developing universe in order. He is often represented pictorially with a huge adze in his hand, and engaged in constructing the world out of the matter which has just begun to take shape. With his death the detailed part of creation appeared. His breath became the wind; his voice, the thunder; his left eye, the sun; his right eye, the moon; his blood yielded rivers; his hair grew into trees and plants; his flesh became the soil; his sweat descended as rain; and the parasites which infested his body were the forerunners of the human race. This sort of stuff, however, could only appeal to the illiterate; for intellectual and educated persons something more was required. And so it came about that a system, based originally upon the quite incomprehensible Book of Changes, generally regarded as the oldest portion of the Confucian Canon, was gradually elaborated and brought to a finite state during the eleventh and twelfth centuries of our era. According to this system, there was a time, almost beyond the reach of expression in figures, when nothing at all existed. In the period which followed, there came into existence, spontaneously, a principle, which after another lapse of time resolved itself into two principles with entirely opposite characteristics. One of these principles represented light, heat, masculinity, and similar phenomena classed as positive; the other represented darkness, cold, femininity, and other phenomena classed as negative. The interaction of these two principles in duly adjusted proportions produced the five elements, earth, fire, water, wood, and metal; and with their assistance all Nature as we see it around us was easily and rapidly developed. Such is the Confucian theory, at any rate so called, for it cannot be shown that Confucius