心理学的真理是帮助我们驾驭现实的东西。

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.

The brain is not a general-purpose computer but a collection of specialized circuits designed to solve specific adaptive problems.

释义：圆的器物容易滚动，而方的器物则易于停止，这是器物的差异；金属刚硬而水则柔弱，这是它们的物性不同。

解释：辛辣食物走气分，气虚或气病的人不宜多食，体现了饮食与病症的关联。