Men honor what lies within the sphere of their knowledge, but do not realize how dependent they are on what lies beyond it.
Cherish that which is within you, and shut off that which is without; for much knowledge is a curse.
Your life has a limit, but knowledge has none. If you use what is limited to pursue what has no limit, you will be in danger. – Zhuangzi
Rewards and punishments are the lowest form of education. – Zhuangzi