Second, savings to provide for old age and other future contingencies which are estimated as more important than any of the purposes for which the money might now be expended. Were interest abolished this kind of saving would be even greater than it is at present; for a larger total would be required to equal the fund that is now provided through the addition of interest to the principal. In a no-interest régime one thousand dollars would have to be set aside every year in order to total twenty thousand dollars in twenty years; when interest is accumulated on the savings, a smaller annual amount will suffice to produce the same fund. Inasmuch as this class of persons would save in an even greater degree without interest, it is clear that they regard the sacrifice involved as fully compensated in the resulting provision for the future. In their case sacrifice is amply rewarded by accumulation. Their claim to additional compensation in the form of interest does not seem to have any valid basis. In the words of the late Professor Devas, "there is ample reward given without any need of any interest or dividend. For the workers with heads or hands keep the property intact, ready for the owner to consume whenever convenient, when he gets infirm or sick, or when his children have grown up, and can enjoy the property with him."[141] The third kind of saving is that which is made by persons who could spend, and have some desire to spend, more on present satisfactions, and who have already provided for all future wants in accordance with the standards of necessaries and comforts that they have adopted. Their fund for the future is already sufficient to meet all those needs which seem weightier than their present unsatisfied wants. If the surplus in question is saved it will go to supply future desires which are no more important than those for which it might be expended now. In other words, the alternatives before the prospective saver are to procure a given amount of satisfaction to-day, or to defer the same degree of satisfaction to a distant day.