死性不改又何尝换来原谅
[sĭ xìng bù găi yòu hé cháng huàn lái yuán liàng]
'Never change and never receive forgiveness.' The user expresses the meaning of unchangeable characteristics (or flaws) despite efforts or wishes from others for reform. It conveys frustration or sadness, indicating that even if a person tries to make changes for the sake of gaining forgiveness, it does not work well in this context.