The contentment of the Tao brings happiness

When the world lives in harmony with the Tao, warhorses are sent back to the fields to plow and fertilize. When the world loses the Tao and falls into war, warhorses give birth to their foals in the open country. No disaster is greater than not knowing when you have enough. No fault is greater than wanting to possess more. So the contentment that comes from knowing when you have enough is lasting contentment.