Freedom and its Betrayal: Six Enemies of Human Liberty, ed. Henry Hardy (London, 2002: Chatto & Windus; Princeton, 2002: Princeton University Press; London, 2003, Pimlico; second edition, Princeton, 2014: Princeton University Press)

• the 'six enemies' are Helvétius, Rousseau, Fichte, Hegel, Saint-Simon, and Maistre
• first broadcast in 1952 as lectures for BBC radio's 'Third Programme' – see B.6
• described as ‘brilliant broadcast lectures’: [E. H. Carr,] The Times Literary Supplement, 9 January 1953, 25
• lecture on Helvétius excerpted as ‘The Art of Being Ruled: Helvétius, Happiness and the Scientists’, The Times Literary Supplement, 15 February 2002, 14–16
• lecture on Saint-Simon excerpted and abridged as ‘Henri de Saint-Simon’, Romulus, June 2002, 16–21
• trans. Chinese, French, Spanish, Italian

2nd. ed. (revised), foreword by Enrique Krauze (Princeton, 2014: Princeton University Press)

• adds an appendix containing draft material for ‘Two Concepts of Liberty’ (see Bib.282, Bib.283)