Two Concepts of Liberty/Mill
From Critiques Of Libertarianism
In so far as I live in society, everything that I do inevitably affects, and is affected by, what others do. Even Mill's strenuous effort to mark the distinction between the spheres of private and social life breaks down under examination. Virtually all Mill's critics have pointed out that everything that I do may have results which will harm other human beings.
Isaiah Berlin, "Two Concepts of Liberty"