数典忘祖 (數典忘祖) shǔ diǎn wàng zǔ

shǔ diǎn wàng zǔ set phrase to recount history but omit one's ancestors; to forget one's roots
Domain: Idiom 成语 , Subdomain: , Concept:
Notes: (CC-CEDICT '數典忘祖')