"The difference between a happy marriage and a miserable one... consists of about ten continued acts of stupidity or kindness, depending on the direction."

成功不在于金钱或名声，而在于幸福和满足感。

解释：怀揣珍宝的人，不要在晚上行走；担负大任的人，不能对敌人掉以轻心。