试图指导私人如何使用他们的资本的政治家，不仅会使自己背负起极不必要的责任，还会行使一种权力，它不能被信任交给任何单个个体，甚至不能被信任交给任何理事会或议会，而且这种权力在愚蠢和自负到足以自认为有资格行使它的人手中最为危险。
The statesman， who should attempt to direct private people in what manner they ought to employ their capitals， would not only load himself with a most unnecessary attention but assume an authority which could safely be trusted， not only to no single person， but to no council or senate whatever， and which would nowhere be so dangerous as in the hands of a man who had folly and presumption enough to fancy himself fit to exercise it.
数学的本质不是使简单的事情复杂化，而是使复杂的事情简单化。
我不怕辛苦工作。我在一个把努力工作当作生活方式的家庭中长大。
在发现自己掉进坑里的时候，最重要的事情就是停止挖掘。