Z:gnu-www-ja-rms-nyu-2001-transcript--912d6e-So that is the big division be/en

So that is the big division between the two categories of free software &mdash; license-wise. There are the programs that are copylefted so that the license defends the freedom of the software for every user. And there are the non-copylefted programs for which non-free versions are allowed. Somebody can take those programs and strip off the freedom. You may get that program in a non-free version.