劳动分工受市场规模的限制。
The division of labor is limited by the extent of the market.
The study of intelligence must integrate multiple disciplines.
人类天生善良，所以他犯罪是违背自己的意愿。
There is a time for daring,and there is a time for caution, and a wise man understanding which is called for
领导力就是今天做出艰难的决定，明天让所有人受益。