 In A Theory of Justice (1971, revised edition 1999), Rawls does not use the terminology of narrow and wide reflective equilibrium, an omission he remarks about with regret in Justice as Fairness: A Restatement (2001, p. 31). Still, he comments that seeking a reflective equilibrium that merely irons out minor incoherence in a person's system of beliefs is not really the use of the method that is of true philosophical interest in ethics, just as we saw it might not be in the case of justifying logical inferences. Rather, he says, to be of interest to moral philosophy, a reflective equilibrium should seek what results from challenging existing beliefs by arguments and implications that derive from the panoply of developed positions in moral and political philosophy (Rawls A Theory of Justice 2nd Edition, 1999, p. 43). Such a reflective equilibrium would be the response to considerable critical pressures on the original beliefs. This effort would have the character of searching deliberation about what is right. It is this much broader form of challenge that Rawls labels the method of wide reflective equilibrium.