Richard Stallman, a leader in the free software community, will speak on “Copyright vs. Community in the Age of Computer Networks,” Thursday, Feb. 25, 4 p.m. in the F.W. Olin Auditorium. There will be a reception at 3:30 p.m. in the Olin Rotunda. Stallman launched the GNU Project in 1983 to create a free Unix-like operating system. He is also founder and president of the Free Software Foundation. His talk, free and open to the public, is hosted by the Computer Science Department.