好汉不提当年勇 (好漢不提當年勇) hǎohàn bù tí dāngnián yǒng

hǎohàn bù tí dāngnián yǒng phrase a real man doesn't boast about his past achievements
Domain: Idiom 成语
Notes: (CC-CEDICT '好漢不提當年勇')