劳动
The division of labour， so far as it can be introduced， occasions， in every art， a proportionable increase of the productive powers of labour.
The property which every man has in his own labor， as it is the original foundation of all other property， so it is the most sacred and inviolable.
The division of labor is limited by the extent of the market.
The training and improvement of labor are effective ways to increase productivity.
Labor is the only source of wealth.
The greatest happiness for the laborer consists in having an abundant supply of the necessaries of life.
