These two theories are not only far from throwing light on the moral state of man, but wrap it in deeper gloom. Let us raise a few questions by way of refutation. If man's fundamental nature be good, as Mencius maintains, why is it easy for him to be vicious without instruction, while he finds it hard to be virtuous even with instruction. If you contend that good is man's primary nature and evil the secondary one, why is be so often overpowered by the secondary nature? If you answer saying that man is good-natured originally, but he acquires the secondary nature through the struggle for existence, and it gradually gains power over the primary nature by means of the same cause, then the primitive tribes should be more virtuous than the highly civilized nations, and children than grownup people. Is this not contrary to fact? If, again, man's nature is essentially bad, as Siun Tsz holds, how can he cultivate virtue? If you contend that ancient sages invented so-called cardinal virtues and inculcated them against his natural inclination, why does he not give them up? If vices be congenial and true to man's nature, but virtues be alien and untrue to him, why are virtues honoured by him? If vices be genuine and virtue a deception, as you think, why do you call the inventors of that deceiving art sages? How was it possible for man to do good before these sages' appearance on earth? 3. Man is both Good-natured and Bad-natured according to Yan Hiung[FN#163] (Yo-yu). According to Yang Hiung and his followers, good is no less real than evil, and evil is no more unreal than good. Therefore man must be double-natured-that is, partly good and partly bad. This is the reason why the history of man is full of fiendish crimes, and, at the same time, it abounds with godly deeds. This is the reason why mankind comprises, on the one hand, a Socrates, a Confucius, a Jesus, and, on the other, a Nero and a Kieh. This is the reason why we find to-day a honest fellow in him whom we find a betrayer to-morrow. [FN#163] Yan Hiung (died A.D. 18) is the reputed author of Tai Huen (Tai-gen) and Fah Yen (Ho-gen). His opinion in reference to human nature is found in Fah Yen. This view of man's nature might explain our present moral state, yet it calls forth many questions bard to answer. If this assertion be true, is it not a useless task to educate man with the purpose of making him better and nobler? How could one extirpate man's bad nature implanted within him at his origin? If man be double-natured, how did he come to set good over evil? How did he come to consider that he ought to be good and ought not to be bad? How could you establish the authority of morality? 4. Man is neither Good-natured nor Bad-natured according to Su Shih (So-shoku).[FN#164]