Look around, and you see everywhere the exertions and acts of individuals restricted, regulated, or promoted, on the principle of the common welfare.
An individual, in promoting his own interest, may injure the public interest; a nation, in promoting the general welfare, may check the interest of a part of its members.
It is bad policy to regulate everything... where things may better regulate themselves and can be better promoted by private exertions; but it is no less bad policy to let those things alone which can only be promoted by interfering social power.
But the general welfare must restrict and regulate the exertions of the individuals, as the individuals must derive a supply of their strength from social power.
E. F. L. Wood, 1st Earl of Halifax