Attempts have been made, by the simple process of interpolation in classical texts, to prove that Lao Tzŭ lived in the same century as that in which Confucius was born; and also that, when the former was a very old man, the two sages met; and further that the interviews ended very much to the astonishment of Confucius. All this, however, has been set aside by the best native scholarship ever produced in China, as the work of later hands. Further, there was another philosopher of the same name, who really was contemporary with Confucius, and it is held by many Chinese critics that the two have been confused, perhaps with malice aforethought. We can only say for certain that after Lao Tzŭ came Confucius—at what interval we do not know. Now, in all the works of Confucius, whether as writer or as editor, and throughout all his posthumously published Discourses, there is not a single word of allusion either to Lao Tzŭ or to this treatise. The alleged interviews have been left altogether unnoticed. One hundred years after Confucius came Mencius, China's second sage. In all his pages of political advice to feudal nobles, and all his conversations with his disciples, much more voluminous than the Discourses of Confucius, there is equally no allusion to Lao Tzŭ, nor to the treatise. It has been pointed out by an eminent Chinese critic of the fifteenth and sixteenth centuries, that Mencius spent his life chiefly in attacking the various heterodox systems which then prevailed, such as the extreme altruistic system of Mo Ti and the extreme egoistic system of Yang Chu; and it is urged—in my opinion with overwhelming force—that if the _Tao-Tê-Ching_ had existed in the days of Mencius, it must necessarily have been recognised and treated as a mischievous work, likely to alienate men's minds from the one perfect and orthodox teaching—Confucianism. Chuang Tzŭ, a philosopher of the fourth century B.C., devoted himself to elucidating and illuminating the teaching of Lao Tzŭ. His work, which has survived to the present day, will shortly occupy our attention. For the moment it is only necessary to say that it contains many of the Master's traditional sayings, but never once mentions a treatise. In the third century B.C. there lived another famous Taoist writer, Han Fei Tzŭ, who devotes the best part of two whole sections of his work to explaining and illustrating the sayings of Lao Tzŭ. Yet he never mentions the treatise. He deals with many sayings of Lao Tzŭ now to be found in the treatise, but he does not take them in the order in which they now stand, and he introduces several others which do not occur at all in the treatise, having apparently been overlooked by the compiler. In the second century B.C. there lived another famous Taoist writer, Huai-nan Tzŭ, who devotes a long chapter to illustrating the doctrines of Lao Tzŭ. He never mentions a book.