We must speak of man's rights. Man has the right to live.  He has the right to bodily integrity and to the means necessary for the proper development of life, particularly food, clothing, shelter, medical care, rest, and, finally, the necessary social services. In consequence, he has the right to  be looked after in the event of ill health; disability stemming from his work;  widowhood; old age; enforced unemployment; or whenever through no fault of his  own he is deprived of the means of livelihood. (St. John XXIII, Peace on Earth [Pacem in Terris], no. 11)
 
In human society one man's natural right gives rise to a  corresponding duty in other men; the duty, that is, of recognizing and  respecting that right. Every basic human right draws its authoritative force from the natural law, which confers it and attaches to it its respective duty.  Hence, to claim one's rights and ignore one's duties, or only half fulfill  them, is like building a house with one hand and tearing it down with the  other. (St. John XXIII, Peace on Earth [Pacem in Terris], no. 30)

As for the State . . . 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. (St. John XXIII, Christianity and Social Progress (Mater et Magistra), no. 20) To be continued