32 By the State we here understand, not the particular form of government prevailing in this or that nation, but the State as rightly apprehended; that is to say, any government conformable in its institutions to right reason and natural law, and to those dictates of the divine wisdom which we have expounded in the encyclical On the Christian Constitution of the State .(26) The foremost duty, therefore, of the rulers of the State should be to make sure that the laws and institutions, the general character and administration of the commonwealth, shall be such as of themselves to realize public well-being and private prosperity. This is the proper scope of wise statesmanship and is the work of the rulers. Now a State chiefly prospers and thrives through moral rule, well-regulated family life, respect for religion and justice, the moderation and fair imposing of public taxes, the progress of the arts and of trade, the abundant yield of the land-through everything, in fact, which makes the citizens better and happier. Hereby, then, it lies in the power of a ruler to benefit every class in the State, and amongst the rest to promote to the utmost the interests of the poor; and this in virtue of his office, and without being open to suspicion of undue interference - since it is the province of the commonwealth to serve the common good. And the more that is done for the benefit of the working classes by the general laws of the country, the less need will there be to seek for special means to relieve them.
Source: Rerum Novarum (Vatican.va)