John B. Taylor:
Simply running a budget surplus would help achieve the productivity growth goal. Why? Because by running a budget surplus, the federal government can add saving to the economy rather than subtract saving from the economy. More saving means more investment...
John M. Keynes:
Those who think in this way are ... are fallaciously supposing that there is a nexus which unites decisions to abstain from present consumption with decisions to provide for future consumption; whereas the motives which determine the latter are not linked in any simple way with the motives which determine the former.