好汉不提当年勇

好汉不提当年勇

Literally means:

a real man does not mention the past achievements; a leman does not brag about his past glories.

Actually means:

It means that a really capable and ambitious person does not need to boast of his past achievements or honors.

This phrase is used for the sake of modesty to indicate that the speaker is unwilling to mention the past contributions and successes or he tries to persuade others not to do it .

It carries a sense of commendatory.

好汉不提当年勇，指真正有本领、有志气的人没有必要用过去的成就或成绩来夸耀自己，显示自己了不起。

这是谦虚的话，表示自己不愿意或劝别人不要提以前的功劳和成绩。具有褒义色彩。