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，元朝大画家赵孟夫的妻子管夫人（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。