This condition of things can only be realized, first, if population is regulated; second, if unproductive labour is suppressed; and third, if the means of labour are made common property. The necessity for regulating population comes, of course, from the limitation of the natural resources at society's command. In any community there is a certain normal limit of population--the limit at which all the natural resources are distributed among all the inhabitants according to their powers--and the community will learn when this limit is reached from the number of workmen who are unable to obtain private employment, and are obliged to seek work from the State. Then it can regulate population by various expedients. It may require the possession of a certain amount of fortune as a preliminary condition to marriage, and raise this amount according to necessity. It may encourage emigration. It may forbid marriages under a fixed age, and to prevent illegitimacy, it might give natural children the same rights as legitimate ones. But Marlo trusts most to the strong preventive check that would be supplied by the power imparted to working men under the Federal _régime_ of improving their position. The same necessity that makes it legitimate, and, indeed, imperative to regulate population, makes it legitimate and imperative also to suppress what Marlo calls unproductive acquisition, _i.e._, the acquisition by persons who are able to work of any other property than they earn as the fruit of their work; and to suppress likewise all waste of the means of life and enjoyment, such, for example, as is involved in the maintenance of unnecessary horses, dogs, or other animals that only eat up the products of the soil. The obligation to labour and the curtailment of luxury would come into exercise before the restrictions on population, and be more and more rigorously enforced as the normal limit of population was approximated.