1. See R. W. Downie, ‘The Right to Criticise’, Philosophy, 44 (1969) p. 116.
2. D. D. Raphael, ‘Human Rights’, Aristotelian Society Supplement, 39 (1965) pp. 206–7; and see also his Problems of Political Philosophy (London, 1970) pp. 68–70.
3. See G. Marshall, ‘Rights, Options and Entitlements’, in A. W. B. Simpson (ed.) Oxford Essays in Jurisprudence (1973) pp. 228, 231–2.
4. Glanville Williams, ‘The Concept of Liberty’, in R. S. Summers (ed.) Essays in Legal Philosophy (Oxford, 1968) pp. 121, 136ff.