It is the duty of government to make it difficult for people to do wrong, easy to do right.
The rational man finds that his share of the cost of the wastes he discharges into the commons is less than the cost of purifying his wastes before releasing them.
My mother, whose family was heavily rabbinic, said she wanted me to continue the family tradition in the rabbinate. My father said he wanted me to be a scholar of the Talmud, but he wanted me to make my living in science.