以古喻今

Pinyin: yǐ gǔ yù jīn Usage: 偏正式；作谓语、定语、状语；借用古代的事来说明现今的道理 Explanation: 喻说明。借用古代的事来说明今天的事情或道理。 Source: 《北史·长孙嵩传》昔叔孙辞沃壤之地，萧何就穷僻之乡，以古方今，无渐曩哲。” Thesaurus:  make use of the subject under discussion to put over one's own ideas, use the past to disparage the present, Zhijimagou, The old days, make the past serve the present, Curse that dog pig, Yigufengjin, Old were Kam, cite past and prove today, By the ancient metaphor for the modern