We know good because there is evil.
Being and not being,
having and not having,
create each other.
Difficult and easy,
long and short,
high and low,
define each other,
just as before and after follow each other.
The dialectic of sound
gives voice to music,
always transforming "is" from "was"
as the ancestors of "to be".
The wise teach without telling,
allow without commanding,
have without possessing,
care without claiming.
In this way we harvest eternal importance
because we never announce it.
(Lao Tsu)
