Quote by Richard Stallman
"Patents on software are like patents on mathematics—they restrict human thought itself."
More from Richard Stallman
"Free software is a matter of liberty, not price."
"The only way to deal with an unfree world is to become so absolutely free that the very existence of the world is a form of resistance."
"Proprietary software is an injustice."
"I would rather be a free person with limitations than a rich person in chains."