Before Uretsky can get another sentence out, Stallman is on his feet waving him down like a stranded motorist.

"I do free software," Stallman says to rising laughter.
"Open source is a different movement."

The laughter gives way to applause. The room is stocked with Stallman partisans, people who know of his reputation for verbal exactitude, not to mention his much publicized 1998 falling out with the open source software proponents. Most have come to anticipate such outbursts the same way radio fans once waited for Jack Benny's trademark, "Now cut that out!" phrase during each radio program.

Uretsky hastily finishes his introduction and cedes the stage to Edmond Schonberg, a professor in the NYU computer-science department. As a computer programmer and GNU Project contributor, Schonberg knows which linguistic land mines to avoid. He deftly summarizes Stallman's career from the perspective of a modern-day programmer.

"Richard is the perfect example of somebody who, by acting locally, started thinking globally [about] problems concerning the unavailability of source code," says Schonberg. "He has developed a coherent philosophy that has forced all of us to reexamine our ideas of how software is produced, of what intellectual property means, and of what the software community actually represents."

Schonberg welcomes Stallman to more applause. Stallman takes a moment to shut off his laptop, rises out of his chair, and takes the stage.

At first, Stallman's address seems more Catskills comedy routine than political speech. "I'd like to thank Microsoft for providing me the opportunity to be on this platform," Stallman wisecracks. "For the past few weeks, I have felt like an author whose book was fortuitously banned somewhere."

For the uninitiated, Stallman dives into a quick free software warm-up analogy. He likens a software program to a cooking recipe. Both provide useful step-by-step instructions on how to complete a desired task and can be easily modified if a user has special desires or circumstances. "You don't have to follow a recipe exactly," Stallman notes. "You can leave out some ingredients. Add some mushrooms, 'cause you like mushrooms. Put in less salt because your doctor said you should cut down on salt-whatever."

Most importantly, Stallman says, software programs and recipes are both easy to share. In giving a recipe to a dinner guest, a cook loses little more than time and the cost of the paper the recipe was written on. Software programs require even less, usually a few mouse-clicks and a modicum of electricity. In both instances, however, the person giving the information gains two things: increased friendship and the ability to borrow interesting recipes in return.

"Imagine what it would be like if recipes were packaged inside black boxes," Stallman says, shifting gears. "You couldn't see what ingredients they're using, let alone change them, and imagine if you made a copy for a friend. They would call you a pirate and try to put you in prison for years. That world would create tremendous outrage from all the people who are used to sharing recipes. But that is exactly what the world of proprietary software is like. A world in which common decency towards other people is prohibited or prevented."