To write is to explore the unknown within ourselves.

The improvement of the productive powers of labor, and the greater part of the skill, dexterity, and judgement with which it is anywhere directed or applied, seem to have been the effects of division of labor.

释义：跟交情浅的朋友说过深的话题，是愚蠢的；生活贫困的人总是希望得到富贵者的施舍，是糊涂的；没有取得他人的信任就进献忠言，会被误解为批评。