 This defense may be generalized by claiming that intuition is self-supporting insofar as the general claim that intuitions provide prima facie justification for belief in their contents is itself intuitive. The possibility of such a defense is the result of the same fact that revealed that all of the extant local skeptical arguments run afoul of the non-self-undermining constraint—the fact that intuitions seem to be the only source of justification for claims about justification, reason, evidence, and other epistemic properties.