Those whose character is mean and vicious will rouse others to animosity against them.

You look upon the seasons with expectation and await them: wy not seize the seasonal opportunities and exploit them?

Human nature is what Heaven supplies.

If the impulse to daring and bravery is too fierce and violent, stay it with guidance and instruction.

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.

In antiquity the sage kings recognized that men's nature is bad and that their tendencies were not being corrected and their lawlessness controlled.

The nature of man is evil; what is good in him is artificial.