买椟还珠 · mǎi dú huán zhū
- 买下装珍珠的匣子，却退还匣中的珍珠。比喻没有眼光，取舍不当，舍本逐末，只注重外表而不注重实质。书证楚珠鬻郑，为薰桂之椟，郑人买椟而还珠。——南朝梁·刘勰《文心雕龙·议对》用法常作谓语、宾语、定语；含贬义。英文keep the casket and return the pearls; show lack of judgement as one who buys the glittering casket and returns the pearls to the seller