The analogy of clay and water in human marriage was long ago expressed by Madame Kuan, wife of the great Yuan painter Chao Mengfu and herself a painter and teacher at the Imperial Court.

• 许多年前，元朝大画家赵孟* 的妻子管夫人(她自己也是画家，曾做宫廷中的师傅)，早已用泥和水来比喻人类的婚姻关系了。