Nothing and no one in the world is valuable or worthless.
There is no greater danger than underestimating your opponent.
I have three treasures which I hold and keep. The first is mercy; the second is economy. The third is daring not to be ahead of others. From mercy comes courage; from economy comes generosity; From humility comes leadership.
By not claiming to be first in the world one can rule.
The Tao of the sage is work without effort.
Misfortune is the root of good fortune; good fortune gives birth to misfortune.