出自汉·桓宽《盐铁论·刺赋》。释义：冰和炭不能放在同一个容器之中，太阳和月亮也不会同时照耀大地。比喻君子与小人不能同处，或比喻相互矛盾的理论不能同时运用。

I don't know what's better gettin' laid or gettin' paid.

Our customers are the foundation of our business, and their success is our success.

家具制造的成功源于对工艺和客户需求的双重理解。