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生意就是赚钱,不是交朋友。
We don't inherit the earth from our ancestors; we borrow it from our children.
The state is the most important institution in human society because it is the only one that can legitimately use force to maintain order.
解释:乌鸦聚集在一起,虽然看上去很和好,实际上并不亲密;不慎重地结交朋友,虽似牢固,终必破裂。