1.勿班門弄斧。
Don't teach your grandmother to suck eggs.
2. 佛要金裝,人要衣裝。
Fine feathers make fine birds.
3. 既往不咎,盡釋前嫌。
Forgive and forget.
4.天無絕人之路。
God never shuts one door without opening another.
5.抱最好的希望, 作最壞的打算。
Hope for the best and prepare for the worst.