“Exclusive property is a theft against nature.”

OSCON 2002
Context: J. C. Watts is the only black member of the Republican Party in leadership. He's going to resign from Congress. He's been there seven and a half years. He's had enough. Nobody can believe it. Nobody in Washington can believe it.... In an interview two days ago, Watts said, Here's the problem with Washington: "If you are explaining, you are losing." If you are explaining, you're losing. It's a bumper sticker culture. People have to get it like that, and if they don't, if it takes three seconds to make them understand, you're off their radar screen. Three seconds to understand, or you lose. This is our problem. Six years after this battle began, we're still explaining. We're still explaining and we are losing. They frame this as a massive battle to stop theft, to protect property.... They extend copyrights perpetually. They don't get how that in itself is a form of theft. A theft of our common culture. We have failed in getting them to see what the issues here are and that's why we live in this place where a tradition speaks of freedom and their controls take it away.

Referring to a famous statement by the French anarchist Pierre-Joseph Proudhon that "Property is theft!", as quoted in The Man Who Loved Only Numbers (1998) by Paul Hoffman, p. 7

Verteile Dein Gut an die Armen: Christus.
Eigentum ist Diebstahl – solange es nicht mir gehört: Marx.
Michael: a German fate in diary notes (1926)

Pearls of Wisdom

Quoted in Christian Science Monitor (21 May 1964)

"On Pilgrimage," Catholic Worker (December 1971)

Geometry as a Branch of Physics (1949)

Letter to Isaac McPherson http://press-pubs.uchicago.edu/founders/documents/a1_8_8s12.html (13 August 1813) ME 13:333.
The sentence He who receives an idea from me, receives instruction himself without lessening mine; as he who lights his taper at mine, receives light without darkening me. is sometimes paraphrased as "Knowledge is like a candle. Even as it lights a new candle, the strength of the original flame is not diminished."
1810s
Context: It is agreed by those who have seriously considered the subject, that no individual has, of natural right, a separate property in an acre of land, for instance. By an universal law, indeed, whatever, whether fixed or movable, belongs to all men equally and in common, is the property for the moment of him who occupies it, but when he relinquishes the occupation, the property goes with it. Stable ownership is the gift of social law, and is given late in the progress of society. It would be curious then, if an idea, the fugitive fermentation of an individual brain, could, of natural right, be claimed in exclusive and stable property. If nature has made any one thing less susceptible than all others of exclusive property, it is the action of the thinking power called an idea, which an individual may exclusively possess as long as he keeps it to himself; but the moment it is divulged, it forces itself into the possession of every one, and the receiver cannot dispossess himself of it. Its peculiar character, too, is that no one possesses the less, because every other possesses the whole of it. He who receives an idea from me, receives instruction himself without lessening mine; as he who lights his taper at mine, receives light without darkening me.