Property is impossible. - Pierre-Joseph Proudhon

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 attack individual rights, based upon existing laws, or to contest the legitimacy of acquired possessions, or to demand an arbitrary division of goods, or to place any obstacle to the free and regular acquisition, by sale and exchange, of property, or even to forbid or suppress, by sovereign degree, ground rent and interest on capital.

I think that all these manifestations of human activity should remain free and voluntary for all: I ask for them no modifications, restrictions or suppressions, other than those which result naturally and of necessity from the universalisation of the principle of reciprocity which I propose.

That in morals, as in all other branches of knowledge, the gravest errors are the dogmas of science; that, even in works of justice, to be mistaken is a privilege which ennobles man; and that whatever philosophical merit may attach to me is infinitely small. 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?

As man seeks justice in equality, so society seeks order in anarchy.