Abandon cleverness, discard profit, and thieves and robbers will disappear.
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.
To understand the limitation of things, desire them.
What is strong and rigid is snapped and laid low. What is flexible and soft will always prevail.
Those who die without being forgotten get longevity.
You cannot know the body by studying the finger, and you cannot understand the universe by learning one science.