I protest that in criticizing property, or rather the whole mass of institutions of which property is the pivot, I have never intended either to atta… - Pierre-Joseph Proudhon

Justice is the central star which governs societies, the pole around which the political world revolves, the principle and the regulator of all transactions. Nothing takes place between men save in the name of right; nothing without the invocation of justice. Justice is not the work of the law: on the contrary, the law is only a declaration and application of justice in all circumstances where men are liable to come in contact. If, then, the idea that we form of justice and right were ill-defined, if it were imperfect or even false, it is clear that all our legislative applications would be wrong, our institutions vicious, our politics erroneous: consequently there would be disorder and social chaos.
This hypothesis of the perversion of justice in our minds, and, as a necessary result, in our acts, becomes a demonstrated fact when it is shown that the opinions of men have not borne a constant relation to the notion of justice and its applications; that at different periods they have undergone modifications: in a word, that there has been progress in ideas. Now, that is what history proves by the most overwhelming testimony.

Friendship is precious in the hearts of the children of men. Generosity, gratitude (I mean here only that gratitude which is born of admiration of a superior power), and friendship are three three distinct shades of a single sentiment which I will call "equity" or "social proportionality. Equity does not change justice; but always taking equity as the base, it adds to it esteem and thereby forms in man a third degree of sociability. Equality makes it at once our duty and our pleasure to aid the weak who need us and to make them our equals; to pay to the strong a just tribute of gratitude and honour without making ourselves slaves to them; to cherish our neighbors, friends, and equals for what we receive from them, even by right of exchange. Equity is sociability raised to this ideal through reason and justice; its most usual manifestation is urbanity or politeness, which among certain nations sums up in a single word almost all the social duties.

To name a thing is easy: the difficulty is to discern it before its appearance. In giving expression to the last stage of an idea, — an idea which permeates all minds, which to-morrow will be proclaimed by another if I fail to announce it to-day, — I can claim no merit save that of priority of utterance. Do we eulogize the man who first perceives the dawn? Yes: all men believe and repeat that equality of conditions is identical with equality of rights; that property and robbery are synonymous terms; that every social advantage accorded, or rather usurped, in the name of superior talent or service, is iniquity and extortion. All men in their hearts, I say, bear witness to these truths; they need only to be made to understand it.