“Our principles offer,” Capitalism and Freedom says, “no hard and fast line how far it is appropriate to use government to accomplish jointly what it is difficult or impossible for us to accomplish separately through strictly voluntary exchange. In any particular case of proposed intervention, we must make up a balance sheet, listing separately the advantages and disadvantages. Our principles tell us what items to put on the one side and what items on the other and they give us some basis for attaching importance to the different items.”
