"[T]he sprawl of government into every conceivable realm of life has caused the withering of traditional institutions. Fathers become unnecessary if the government provides Aid to Families with Dependent Children. Church charities lose their mission when the government provides food, shelter and income to the poor. And the non-poor no longer feel pressed to provide aid to those in need, be they aged parents or their unfortunate neighbors-"compassion" having become the province of the state."