The knowledge of courtesy and good manners is a very necessary study. Like grace and beauty, it begets liking and an inclination to love one another at first sight.
礼仪与品德是十分必要的修养。他让人们能够喜欢对方甚至一见钟情，就像优雅与美丽一样。

——Montaigne, Essays
——蒙田《随笔集》