Human nature is what Heaven supplies.

Pride and excess bring disaster for man.

Human nature is evil, and goodness is caused by intentional activity.

If the quickness of the mind and the fluency of the tongue are too punctilious and sharp, moderate them in your activity and rest.

There are successful scholars, public-spirited scholars, upright scholars, cautious scholars, and those who are merely petty men.

Human nature is such that people are born with a love of profit If they follow these inclinations, they will struggle and snatch from each other, and inclinations to defer or yield will die.

When you concentrate on agriculture and industry and are frugal in expenditures, Heaven cannot impoverish your state.