(cont'd) You'll note that thoughout this I've been using "agency" and not "liberty" but you could almost swap them out. I like the former better it's focused on what you _can_ do, not what you're _allowed_ to do. You can (and often do) have liberty but no agency.
Consider the classic line about freedom of the press being only for those who own presses. "freedom of the press" is liberty, "owning presses" is agency.