《荀子·天论》
因此太阳、月亮倘若不高悬空中，光辉就不显赫；水火如果不积聚，光泽就不广博；珠玉的光彩如果没有显露在外面，王公就不会把它当作珍宝；礼义不施于国中，功名就不显著。
故日月不高，则光明不赫；水火不积，则晖润不博；珠玉不睹乎外，则王公不以为宝；礼义不加于国家，则功名不白。
Thus, if the sun and moon do not hang high in the sky, their radiance will not be splendid; if water and fire do not gather together, their brilliance will not be great; if the luster of pearls and jade is not displayed outside, the King and Duke will not treat them as treasures; if rites and righteousness are not spread throughout the country, reputations will not be significant.