感知是一个主动的过程,大脑从感官输入中构建意义。
The passions that incline men to peace are fear of death, desire of such things as are necessary to commodious living, and a hope by their industry to obtain them.
所以,储备是国家最重要的事;粮食是国家的宝物;武器是国家的利爪;城池是守卫国家的屏障。