The truth is, the science of Nature has been already too long made only a work of the brain and the fancy: It is now high time that it should return to the plainness and soundness of observations on material and obvious things.

你永远是一个有价值、值得尊敬的人——不是因为任何人这么说，不是因为你成功了，不是因为你赚了很多钱——而是因为你决定相信这一点，没有其他原因。

任正非内部讲话稿

用户需求是产品开发的出发点，也是落脚点。