FOSS is an interesting beast in that it's comprised of both Open Source (the Linux kernel) and Free Software (the GNU project). Linus is more pragmatic than Stallman so depending on where you personally fall in the idealistic vs pragmatic scale you may lean more towards either one of their philosophies.

These days I sprinkle less salt on Stallman's _software_ ideas, there are many things I thought he was being an idiot about, which very recently became true. But maybe it could Nostradamus-isms: predict enough an eventually something will stick.