故备者，国之重也；食者，国之宝也；兵者，国之爪也；城者，所以自守也。
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。
存在总是某种存在者的存在。
I believe that architecture is a pragmatic art. To become art it must be built on a foundation of necessity.
Science is the art of asking the right questions.
On the road of entrepreneurship, difficulties and challenges are inevitable, but it is these difficulties and challenges that make us stronger.
The universe is not only stranger than we imagine, it is stranger than we can imagine.
神经系统是一个动态的、不断变化的系统。