 Many contemporary moral and political philosophers analyze our individual rights and freedoms with a conceptual apparatus developed by Wesley Hohfeld (1919), who identified eight normative positions which together make four pairs of correlates and four pairs of opposites. Claims correlate with duties. Liberties (or permissions), which are the opposite of duties, correlate with no-claims. Powers correlate with liabilities. And, disabilities, the opposite of powers, correlate with immunities, which are the opposite of liabilities. Using this Hohfeldian terminology, freedom of association can refer to any one of the following positions and its correlate: