52 But social justice cannot be said to have been satisfied as long as workingmen are denied a salary that will enable them to secure proper sustenance for themselves and for their families; as long as they are denied the opportunity of acquiring a modest fortune and forestalling the plague of universal pauperism; as long as they cannot make suitable provision through public or private insurance for old age, for periods of illness and unemployment. In a word, to repeat what has been said in Our Encyclical Quadragesimo Anno : "Then only will the economic and social order be soundly established and attain its ends, when it offers, to all and to each, all those goods which the wealth and resources of nature, technical science and the corporate organization of social affairs can give. These goods should be sufficient to supply all necessities and reasonable comforts, and to uplift men to that higher standard of life which, provided it be used with prudence, is not only not a hindrance but is of singular help to virtue."
Source: Divini Redemptoris (Vatican.va)