From time immemorial proverbial wisdom has taught the virtues of saving, and warned against the consequences of prodigality and waste. This proverbial wisdom has reflected the common ethical as well as the merely prudential judgments of mankind. But there have always been squanderers, and there have apparently always been theorists to rationalize their squandering. The classical economists, refuting the fallacies of their own day, showed that the saving policy that was in the best interests of the individual was also in the best interests of the nation. They showed that the rational saver, in making provision for his own future, was not hurting, but helping, the whole community. But today the ancient virtue of thrift, as well as its defense by the classical economists, is once more under attack, for allegedly new reasons, while the opposite doctrine of spending is in fashion.