We are not selling water, we are selling health.
我们卖的不是水，我们卖的是健康。
It is impossible to live without failing at something, unless you live so cautiously that you might as well not have lived at all.
"The world is a mirror, and the mirror is a shadow."
要么忙着活，要么忙着死。
A legal system is a system of rules which are valid according to the system's own criteria of validity.
The only person who is educated is the one who has learned how to learn and change.