51. In reality, besides commutative justice, there is also social justice with its own set obligations, from which neither employers nor workingmen can escape. Now it is of the very essence of social justice to demand for each individual all that is necessary for the common good. But just as in the living organism it is impossible to provide for the good of the whole unless each single part and each individual member is given what it needs for the exercise of its proper functions, so it is impossible to care for the social organism and the good of society as a unit unless each single part and each individual member - that is to say, each individual man in the dignity of his human personality - is supplied with all that is necessary for the exercise of his social functions. If social justice be satisfied, the result will be an intense activity in economic life as a whole, pursued in tranquillity and order. This activity will be proof of the health of the social body, just as the health of the human body is recognized in the undisturbed regularity and perfect efficiency of the whole organism.
- 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.”[37]