 To begin with, income and workplace organization are regulated by the difference principle: inequalities in income and hierarchies in the workplace are permitted only to the extent that they work to the greatest benefit of the least well off. Education is regulated by the principle of fair equality of opportunity, which requires “equitable public education” as well as “developmentally appropriate day care and early childhood interventions” (Daniels 2008: 96). Political participation, which Daniels (2008: 95–6) regards as a social determinant of health, is regulated by the principle of equal basic liberty: among other things, this principle safeguards the fair value of the right to participate politically. Finally, reaffirming his earlier work (1985), Daniels maintains that fair equality of opportunity also requires universal access to comprehensive health care (broadly construed to include public health).