《国语·楚语·伍举论台美而楚殆》
所谓美，是指对上下、内外、大小、远近都没有妨害，所以才叫美。
 夫美也者，上下、内外、小大、远近皆无害焉，故曰美。
The so-called beauty refers to no harm to the upper and lower, the inside and outside, the size, the distance, so it is called beauty.