Is not the space between Heaven and Earth like a bellows? It is empty, but lacks nothing. The more it moves, the more comes out of it.
He who knows, knows not. He who knows not, knows.
The wise man puts himself last and finds himself first.
One cannot reflect in streaming water. Only those who know internal peace can give it to others.
Wise travelers always stop short before they come to danger.
All things of the world are born of being; being is born of nonbeing.