Abstract
Although Isaiah Berlin's critique of positive liberty has achieved canonical status, its place within his wider political philosophy remains obscure. However, the re-publication of one of his most important philosophical essays, From Hope and Fear Set Free, as part of a new edition of Four Essays on Liberty, simply entitled Liberty, has opened the door to a re-evaluation of Berlin's political project. At the heart of Berlin's argument, which gains its fullest expression in From Hope and Fear Set Free, stands his contention that positive liberty, in its incarnation as self-realisation, conflates liberty with knowledge, which leads to the distortion of our phenomenologically inescapable structure of experience. This transgression against the conceptual framework in terms of which we think, Berlin argues, played its desolate part in linking the ?totalitarian temptation? latent in liberty as self-realisation with the totalitarian politics of the mid-twentieth century