It's hard to keep your balance standing tip-toe.
Nothing in the world is more flexible and yielding than water. Yet when it attacks the firm and the strong, none can withstand it, because they have no way to change it. So the flexible overcome the adamant, the yielding overcome the forceful. Everyone knows this, but no one can do it.
The best of all teachers is the one who helps people so that eventually they don't need him.
Filling all the way to the brim is not as good as halting in time.
All things carry yin and embrace yang. They reach harmony by blending with the vital breath.
Truly, only those who see illness as illness can avoid illness.