必然
                
        
    
The beauty of a mathematical proof lies in its simplicity and inevitability.
                    Failure isn’t a necessary evil. In fact, it isn’t evil at all. It is a necessary consequence of doing something new.
                    "The reason death sticks so closely to life isn't biological necessity—it's envy. Life is so beautiful that death has fallen in love with it, a jealous, possessive love that grabs at what it can."
                    The failure of an enterprise is not accidental, but inevitable.
                    The success of an enterprise is not accidental, but inevitable.