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Listen to your customers more than you speak to them - they'll tell you exactly what you need to know.
多倾听你的客户,而不是对他们说话 - 他们会告诉你你需要知道的东西。
如果没有经历寒冷的冬天,就不知道松柏的坚韧挺拔;没有经历过危难的事情,就不知道君子志向的远大。
训练时流汗越多,战场上流血越少。
It's easy to perform for others, but hard to perform for yourself.