Reflective equilibrium serves an important justificatory function within Rawls's political theory. And whereas internalists require cognitive access to justificatory means, externalists find justification without such access. He contrasts his genealogical project with David Gauthier's justificatory account in several respects. His previous books include "The Order of Public Reason" and "Justificatory Liberalism". This provides some motivation for a different view of the justificatory role of reflective equilibrium.