In antiquity the sage kings recognized that mens nature is bad and that their tendencies were not being corrected and their lawlessness controlled. – Xun Zi
Human nature refers to what is in people but which they cannot study or work at achieving. – Xun Zi
Since the nature of people is bad, to become corrected they must be taught by teachers and to be orderly they must acquire ritual and moral principles. – Xun Zi
When people lack teachers, their tendencies are not corrected when they do not have ritual and moral principles, then their lawlessness is not controlled. – Xun Zi