But Taoism as it is believed popularly is so full of superstitions that it is not in vital contact with the main current of orthodox Chinese thought which is represented, maintained, and cherished by the literati including the government officials. To a greater extent Taoism is the popular and superstitious Chinese rendering of Buddhism, but there will be many critics, the present writer for one, who rather hesitate to consider the essence of Buddhism sufficiently transcribed in terms of the Taoists. Unless the Confucians were not moved to assimilate Buddhist thought in their system, so naturally that they attempted to reconstruct the whole frame of Confucian ideas, not merely for the sake of reconciliation, but for the sake of deepening, enriching, and resuscitating it, we cannot say that Buddhism entered into the life of Chinese thought and became the real possession of the Chinese mind. But this was done during the Sung dynasty when the Confucian philosophers took in Buddhist ideas into their teaching and reconstructed the whole system on a new basis, which, however, was considered by them to be the necessary course of growth for Confucianism. Whatever this was, there is no doubt that the Sung philosophy was enriched and deepened by absorbing Buddhist views. In this, all the historians of Chinese intellectual development agree. There is a question, however, one may ask concerning this general reconstruction of Confucianism on the idealistic Buddhist scheme. If Zen did not grow up in China as the native interpretation of the Doctrine of Enlightenment and prepared the way for the rise of such great Confucian writers as Chou Tun-I (1017–1073),[2.9] the Ch‘eng brothers, Ch‘eng Hao (1032–1085) and Ch‘eng I (1035–1107), and Chu Hsi (1130–1200), would there have been a Sung revival of the orthodox Chinese teaching? To my view, without Zen the Sung dynasty would not have seen the phenomenal uprising of what the Chinese historians call the “Science of Reason.” As we already said, Zen was the only form in which Buddhism could enter into the Chinese mind. This being the case, whatever they later produced in the realm of thought, could not but be tinged with Zen. See how the psychological school of Yogācāra was received by the native thinkers. It was first advocated, propounded, and commented by Hsüan-chuang and his great disciples, but this profound study of the human mind was too analytical even for the best minds of China, and did not thrive very long after Hsüan-chuang. Then how did the Prajñā-Pāramitā philosophy fare? It was brought into China in the first century soon after the introduction of Buddhism itself and later most ably supported and interpreted by Kumārajīva and his Chinese pupils. It had a better prospect than the Yogācāra, because its Chinese counterpart was found in the teaching of Lao-tzŭ and his followers. Those two groups of philosophers, Buddhist and Laotzŭan, may be classed as belonging to the same type of thought;