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.

Music is a fantastic peacekeeper of the world, it is integral to harmony, and it is a required fundamental of human emotion.

Man's nature is evil; goodness is the result of conscious activity.

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

Misery is evil; quarreling, a misfortune. There is only one possibility of avoiding both: a clear division of society. [Otherwise] the strong tyrannize the weak, the intelligent frighten the stupid, the inferior resist the superior, and the young mock the old.

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

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