Pierre-Joseph Proudhon

"Property is theft" is the line everyone knows, yet Proudhon defended small holdings worked by their owners and attacked only income drawn from rent and interest. His mutualism imagined independent producers trading through a people's bank offering free credit, with no state at all. Marx wrote a whole book against him, The Poverty of Philosophy, and their quarrel over the state and centralisation runs through every later split between anarchists and Marxists.