不念旧恶 Not to hold a grudge against past evils
Explanation
不念旧恶，意思是忘记过去的仇恨。指宽宏大量，不记仇。
Not to hold a grudge against past evils means to forget past hatred.It refers to generosity and forgiveness.
Origin Story
话说东汉末年，曹操征战四方，为了统一大业，他广纳贤才，不拘一格。即使是曾经与他为敌，甚至伤害过他的人，只要真心归降，曹操也都能不念旧恶，委以重任。例如，张绣曾经背叛曹操，杀死了他的爱子曹昂。但后来张绣再次归降，曹操并没有追究他的旧怨，反而重用了他，最终促成了魏国的统一。这便是曹操的胸襟，他能够不念旧恶，最终成就了一番大业。曹操的这种胸怀也让他赢得了许多人的尊重和敬仰，他的军队也因此更加团结一心。 当然，曹操的不念旧恶也有其局限性，并非完全没有代价，这需要结合当时的政治局势和曹操的战略目标来理解。
In the late Eastern Han Dynasty, Cao Cao led many military campaigns to unify the country. He attracted talented people regardless of their background. Even those who had once been his enemies or who had betrayed him were accepted by Cao Cao after genuine repentance and entrusted with important positions. For example, Zhang Xiu once betrayed Cao Cao and killed his beloved son Cao Ang. Later, however, Zhang Xiu surrendered again, and Cao Cao did not hold a grudge against him, but instead promoted him, which eventually contributed to the unification of the Wei state.This was Cao Cao's broad-mindedness, and his ability to not hold grudges ultimately led to his great achievements. Cao Cao's magnanimity also earned him the respect and admiration of many people, and his army became more united as a result. Of course, Cao Cao's refusal to hold grudges also had its limitations and was not without cost. This needs to be understood in the context of the political situation at the time and Cao Cao's strategic goals.
Usage
形容人宽宏大量，不记仇。常用作谓语、宾语。
Describes someone as magnanimous and forgiving. Often used as a predicate or object.
Examples
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他始终不念旧恶，与人为善。
ta shizhong bunianjiue,yu ren wei shan.
He always forgave past wrongs and was kind to others.
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尽管曾经有过误会，但他不念旧恶，依然与对方保持着友好的关系。
jinguang cengjing youguo wuhui,dan ta bunianjiue,yiran yu duifang baochi zhe youhaode guanxi
Despite past misunderstandings, he remained friendly with the other party, not mentioning past grievances..