The GNU Manifesto - by Richard Stallman (1985)
The GNU Manifesto opens with an explanation of what the GNU Project is, and what is the current progress in creation of the GNU operating system. The manifesto lays a philosophical basis for launching the project, and importance of bringing it to fruition — proprietary software is a way to divide users, who are no longer able to help each other. Stallman refuses to write proprietary software as a sign of solidarity with them. (via)
30 years of the GNU manifesto written by Richard Stallman - by phoneia