The growth of a nation's productive potential is the central factor in determining its growth in real wages and living standards.... high rates of investment and saving usually have a big payoff in promoting economic growth.
Paul SamuelsonThe debate can be put in the form of the question: Resolved, that the best of money managers cannot be demonstrated to be able to deliver the goods of superior portfolio-selection performance. Any jury that reviews the evidence, and there is a great deal of relevant evidence, must at least come out with the Scottish verdict: Superior investment performance is unproved.
Paul Samuelson