Full Idea
Isaiah Berlin draws a famous distinction between 'negative' and 'positive' concepts of liberty, and argues that the latter should be seen as a wrong turning (because totalitarian regimes have invoked it).
Gist of Idea
Berlin distinguishes 'negative' and 'positive' liberty, and rejects the latter
Source
report of Isaiah Berlin (Two Concepts of Liberty [1958]) by Adam Swift - Political Philosophy (3rd ed) 2 'Intro'
Book Reference
Swift,Adam: 'Political Philosophy (3rd edn)' [Polity 2014], p.57
A Reaction
Swift argues against him, saying that positive liberty is not a single concept (it's three), and has aspects that should be defended. I think I'm with Swift on that. Is religious freedom a freedom 'from' something, or a freedom 'to do' something?