以德报怨: return [render] good for evil; repay injury with kindness; requite evil with good; requite injury [ingratitude] with kindness; repay injury with kindness
以德报怨大丈夫: good for good is natural good for evil is manlygood health is over wealth
忘恩负义: devoid of gratitude; be ungrateful and act contrary to justice; be ungrateful and leave one's benefactor in the lurch; be ungrateful and treacherous; be ungrateful to kindness; forget a fa