In the infancy of societies, the chiefs of state shape its institutions; later the institutions shape the chiefs of state.
过去从未死去。它甚至不是过去。
模糊集的概念提供了一种自然的方式来处理那些不精确性源于缺乏明确定义的类别成员标准的问题。
Accepting your flaws only makes you a winner.