 If so, then Cicero can likewise reject Lucullus’ assertion that the sceptic must (inconsistently) hold their own theory of plausibility as certain. He reiterates Carneades’ view that the theory, like any other claim, could at most have the status of plausibility by the very terms of the theory (2.110). Seen in the light of the ‘unimpeded’ condition, plausibility now looks a more robust notion than it may have appeared, and so the resting of one’s whole procedure for decision and action on such a basis looks correspondingly less fragile, though of course it is still fallible. But scepticism deserves to be rejected not if it cannot claim certainty for its guiding principle, but if it fails to apply to itself the same standards of critical scrutiny that it does elsewhere.