Stretch a bow to the very full,
and you will wish you had stopped in time.
Temper a sword-edge to its very sharpest,
and the edge will not last long.
When gold and jade fill your hall,
you will not be able to keep them safe.
To be proud with honor and wealth
is to cause one's own downfall.
Withdraw as soon as your work is done.
Such is heaven's way.