The real tragedy of the poor is that they can afford nothing but self-denial.

因果推理需要仔细思考分析背后的假设。

The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.

时间会对所有交易造成负面影响，有时甚至产生致命影响。一般情况下，等待的时间越久，意料之外的事情就越多。特别是在艰难的谈判中，要让所有人都在谈判桌上协商足够长的时间，以此达成协议。

优化编译器很像核电站。它们都非常强大，也非常危险。