Mot to be taken as a precedent; not to be repeated. - Chinese Idiom

下不为例。- 汉语成语

Not be too hard on somebody; let through. - Chinese Idiom

高抬贵手。- 汉语成语

Forgive and forget. - Chinese Idiom

不计前嫌。- 汉语成语

Let bygones be bygones. - Chinese Idiom

既往不咎。- 汉语成语

Let him off if he deserves. - Chinese Idiom

得饶人处且饶人。- 汉语成语

Forgiveness is also some kind of encouragement, enlightenment and direction; it urges us to give up evil and follow good, leads the astray to the right track and develops their potentiality. – Mooney Na Element

谅解也是一种勉励、启迪和指引，它能催人弃恶从善，使误入歧途者回到正轨并发挥他们的潜力。 – 穆尼尔 纳素夫

人孰无过？心存宽恕，就是圣洁。- 蒲柏

To err is human, to forgive, divine. – Alexander Pope