The official definition of 'open source software,' as published by the Open Source Initiative, is very close to our definition of free software; however, it is a little looser in some respects, and they have accepted a few licenses that we consider unacceptably restrictive of the users.
More from Richard M. Stallman
The term 'free software' has an ambiguity problem: an unintended meaning, 'Software you can get for zero price,' fits the term just as well as the intended mea…
Permalink to quote #52 The explanation for 'free software' is simple--a person who has grasped the idea of 'free speech, not free beer' will not get it wrong again.
Permalink to quote #54 We are not against the Open Source movement, but we don't want to be lumped in with them. We acknowledge that they have contributed to our community, but we cr…
Permalink to quote #51