When a piece of jade is moistened, it looks bright. struck, its sound is slow and harmonious. How expansive are its aspects! With no interior or exterior, it does not conceal its flaws or imperfections. Close up, it looks glossy; from a distance, it shines brightly. It reflects like a mirror revealing the pupil of your eye. Subtly it picks up the tip of an autumn hair. It brightly illuminates the dark and obscure. Thus the jade disk of Mr. He and the pearl of the marquis of Sui [隨侯之珠 emerged from the essence of a mountain and a spring. When the Superior Man wears them, he complies with their purity and secures his repose. When lords and kings treasure them, they rectify the world. (Chapter 16.19)