1.Easy come, easy go. 易得易失。

2.Eat to live, but not live to eat. 吃饭是为了生存，但生存不是为了吃饭。

3.Every advantage has its disadvantage. 有利必有弊。

4.Eye for eye and tooth for tooth. 以牙还牙，以眼还眼。

5.Example is better than precept. 言教不如身教。

Thank you for your sharing.