"Free" has been a founding concept in the Linux world since before there was Linux — or GNU/Linux, if you prefer. In his history of the GNU project, Richard M. Stallman begins, "When I started working at the MIT Artificial Intelligence Lab in 1971, I became part of a software-sharing community that had existed for many years. Sharing of software was not limited to our particular community; it is as old as computers, just as sharing of recipes is as old as cooking."