 (i) Liberals have typically maintained that humans are naturally in “a State of perfect Freedom to order their Actions…as they think fit…without asking leave, or depending on the Will of any other Man” (Locke, 1960 [1689]: 287). Mill too argued that “the burden of proof is supposed to be with those who are against liberty; who contend for any restriction or prohibition…. The a priori assumption is in favour of freedom…” (1963, vol. 21: 262). Recent liberal thinkers such as as Joel Feinberg (1984: 9), Stanley Benn (1988: 87) and John Rawls (2001: 44, 112) agree. Liberalism is a philosophy that starts from a premise that political authority and law must be justified. If citizens are obliged to exercise self-restraint, and especially if they are obliged to defer to someone else’s authority, there must be a reason why. Restrictions on liberty must be justified.