His was a mysterious power of discernment, approaching to that of Yen Hui [1].' We must take the Book and the author, however, as we have them, and get to their meaning, if we can, by assiduous examination and reflection. 2. 'Man has received his nature from Heaven. Conduct in accordance with that nature constitutes what is right and true,-- is a pursuing of the proper Path. The cultivation or regulation of that path is what is called Instruction.' It is with these axioms that the Treatise commences, and from such an introduction we might expect that the writer would go on to unfold the various principles of duty, derived from an analysis of man's moral constitution. Confining himself, however, to the second axiom, he proceeds to say that 'the path may not for an instant be left, and that the superior man is cautious and careful in reference to what he does not see, and fearful and apprehensive in reference to what he does not hear. There is nothing more visible than what is secret, and nothing more manifest than what is minute, and therefore the superior man is watchful over his aloneness.' This is not all very plain. Comparing it with the sixth chapter of Commentary in the Great Learning, it seems to inculcate what is there called 'making the thoughts sincere.' The passage contains an admonition about equivalent to that of Solomon,-- 'Keep thy heart with all diligence, for out of it are the issues of life.' The next paragraph seems to speak of the nature and the path under other names. 'While there are no movements of pleasure, anger, sorrow, or joy, we have what may be called the state of equilibrium. When those feelings have been moved, and they all act in the due degree, we have what may be called the state of harmony. This equilibrium is the great root of the world, and this harmony is its universal path.' What is here called 'the state of equilibrium,' is the same as the nature given by Heaven, considered absolutely in itself, without deflection or inclination. This nature acted on from without, and responding with the various emotions, so as always 'to hit [2]' the mark with entire 1 See the 續文獻通考, Bk. cxcix, art. 子思,--曾子得之于隨事省察,而子思之學,則 直達天德,庶幾顏氏之妙悟. 2 中節. correctness, produces the state of harmony, and such harmonious response is the path along which all human activities should proceed. Finally. 'Let the states of equilibrium and harmony exist in perfection, and a happy order will prevail throughout heaven and earth, and all things will be nourished and flourish.' Here we pass into the sphere of mystery and mysticism. The language, according to Chu Hsi, 'describes the meritorious achievements and transforming influence of sage and spiritual men in their highest extent.' From the path of duty, where we tread on solid ground, the writer suddenly raises us aloft on wings of air, and will carry us we know not where, and to we know not what. 3.