We are going to die, and that makes us the lucky ones.
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。
The future is not something to be predicted, but something to be achieved.
The investor's chief problem - and even his worst enemy - is likely to be himself.
The past is never dead. It's not even past.