Life is like a ten-speed bicycle...Most of us have gears we never use!.
模糊集的概念为构建一个在许多方面与普通集框架平行的概念框架提供了一个方便的出发点。
Every seed planted is a promise to future generations.
You can obsess about serving your customers/audience/clients, or you can obsess about beating the competition. Both work, but of the two, obsessing about your customers will take you further.