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。
人生是连续的选择,每一个选择都在塑造未来。
The whole art of teaching is only the art of awakening the natural curiosity of young minds for the purpose of satisfying it afterwards.
The most dangerous thing is to be alive. But it is also the most beautiful.
It’s one thing to have a past, and another to be held hostage by it.