郑人：春秋时期郑国人。履：鞋。郑国人买鞋。比喻只相信书本，不相信客观实际。多用以讽刺教条主义者。
The man who rather trusted his measurements than placing any confidence in his own feet when buying shoes
郑(zhèng)
人(rén)
实(shí)
履(lǚ)
