For ten points, name this work by Pierre-Joseph Proudhon.
The inflammatory sequel to this work, published in 1842, was Avertissement aux propri?aires. The work in question, written while its author was studying in Paris on a scholarship to the Besan?n Academy, it includes the bold statement, "I am an anarchist," while answering the title question with "theft." For ten points, name this work by Pierre-Joseph Proudhon.
The inflammatory sequel to this work, published in 1842, was Avertissement aux propri?aires.
What is Property or Qu'est-ce que la propri??