光前裕后 (光前裕後) guāng qián yù hòu

guāng qián yù hòu set phrase to bring honor to one's ancestors and benefit future generations
Domain: Idiom 成语
Notes: (CC-CEDICT '光前裕後'; Guoyu '光前裕後'; Mathews 1931 '光前裕後', p. 127)