Rewards and punishments are the lowest form of education.

A sage steers by the bright light of confusion and doubt.

But you now, you wear your soul on your sleeve, exhausting your energy, propping yourself up on a tree, mumbling, or bent over your desk, asleep. Heaven gives you a form and you wear it out by pointless argument.

All that is limited by form, semblance, sound, color is called object. Among them all, man alone is more than an object. Though, like objects, he has form and semblance, He is not limited to form. He is more. He can attain to formlessness. When he is beyond form and semblance, beyond "this" and "that," where is the comparison with another object? Where is the conflict? What can stand in his way? He will rest in his eternal place which is no-place. He will be hidden in his own unfathomable secret. His nature sinks to its root in the One. His vitality, his power hide in secret Tao.

You cannot speak of ocean to a well-frog, the creature of a narrower sphere. You cannot speak of ice to a summer insect, the creature of a season.

The true man breathes with his heels.

The perfect man employs his mind as a mirror.