The first essential component of social justice is adequate food for all mankind.

技术积累是一个长期过程，不能急功近利。

The same principles which at first view lead to skepticism， pursued to a certain point， bring men back to common sense.

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.

出自《海国图志》。圣人把天下当作一家，四海的人都是兄弟，所以对远方的人采取怀柔政策，以宾客的礼仪对待外国，这是王者的大度;普遍了解边塞民族的风俗，广泛博览全球风貌，这是智慧之人的远见卓识。