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。

A business has to be involving, it has to be fun, and it has to exercise your creative instincts.

The tragedy of great power politics is that it leads to conflict and war.

成功不在于完美，而在于持续改进和适应变化。

释义：国际秩序的本质是武力威慑下的平衡。