"Seal the openings, shut the doors, and until your last day you will not be exhausted. Widen the openings, interfere, and until your last day you will not be safe."

"Time is a created thing. To say 'I don't have time' is to say 'I don't want to.'"

"The heavy is the root of the light. The still is the master of the restless."

"Knowing others is intelligence; knowing yourself is true wisdom. Mastering others is strength; mastering yourself is true power."

"The more prohibitions there are, the poorer the people will be. The more sharp weapons the people have, the more troubled the state will be. The more cunning and skill man possesses, the more peculiar…"