Secondly, private ownership of property, including that of productive goods, is a natural right which the State cannot suppress. But it naturally entails a social obligation as well. It is a right which must be exercised not only for one's own personal benefit but also for the benefit of others.
As for the State, its whole raison d'etre is the realization of the common good in the temporal order. It cannot, therefore, hold aloof from economic matters. On the contrary, it must do all in its power to promote the production of a sufficient supply of material goods, "the use of which is necessary for the practice of virtue." 7St. Thomas, De regimine principum, I, 15. It has also the duty to protect the rights of all its people, and particularly of its weaker members, the workers, women and children. It can never be right for the State to shirk its obligation of working actively for the betterment of the condition of the workingman.