《老子道德经(英译本)Lao Tze》第十章 9. Retire· 李耳

Fill a cup to its brim and it is easily spilled;

Temper a sword to its hardest and it is easily broken;

Amass the greatest treasure and it is easily stolen;

Claim credit and honour and you easily fall;

Retire once your purpose is achieved - this is natural.