GNU Manifesto
The 
GNU Manifesto was written by 
Richard Stallman in 
1985 as an explanation and definition of the goals of the 
GNU project. It is regarded by many in the 
Free software movement as a fundamental philosophical source. The full text is included with GNU software such as 
Emacs and the 
Debian GNU/Linux distribution, and is available on the web at 
http://www.gnu.org/gnu/manifesto.html. It was last updated in 1993.