Now it is human nature to want to eat to ones fill when hungry, to want to warm up when cold, to want to rest when tired. These all are a part of people's emotional nature.

When people lack teachers, their tendencies are not corrected; when they do not have ritual and moral principles, then their lawlessness is not controlled.

Human nature refers to what is in people but which they cannot study or work at achieving.

One must remember equality, yet also be aware of difference, for if the people are allowed to act as it pleases them without coming up against displeasure, if one gives rein to its desires without setting [any] limit, it becomes confused and can no longer take delight in anything.

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

The person attempting to travel two roads at once will get nowhere.

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