1.勿班门弄斧。
Don't teach your grandmother to suck eggs.
2. 佛要金装，人要衣装。
Fine feathers make fine birds.
3. 既往不咎，尽释前嫌。
Forgive and forget.
4.天无绝人之路。
God never shuts one door without opening another.
5.抱最好的希望， 作最坏的打算。
Hope for the best and prepare for the worst.
（责任编辑:doublejp）
