TAO is inscrutable. From TAO proceeds the one (potentiality); one produces two (the positive and negative principles); this makes three. From these three proceed all things. All things thus bear the imprint of the negative yin behind and embrace the positive yang in front. The primal principle of potentiality, as it becomes active, brings the negative and positive together and there is manifestation.
The things that are detested by common people, namely, to be called the forlorn, the inferior, the unworthy, are the very things that kings and princes take for titles. These are the very things that it is a gain to lose and a loss to gain.
I am teaching the same thing which is taught by others; others have said that the strong and aggressive do not come to natural deaths, but I make this saying the basis of my teaching.