We join spokes together in a wheel, but it is the center hole that makes the wagon move.
What is strong and rigid is snapped and laid low. What is flexible and soft will always prevail.
To know one's ignorance is the best part of knowledge.
The wise man doesn't compete; therefore nobody can compete with him.
A good traveler leaves no tracks. Good speech lacks fault-finding.
When people see some things as good, other things become bad.