  A final topic taken up by Autrecourt in this context is the problem of the criterion: How can one discriminate between appearances that provide the basis for true judgments and those that do not? Like Aristotle, he holds that appearances from what we perceive under “normal” conditions cause true judgments. Also like Aristotle, he asserts that there is no further proof that the criterion on which the distinction between veridical and false judgments rests is correct. Both dismiss worries about the justification of the criterion as absurd. In the words of Autrecourt: “One must accept as true what appears in the full light. Now, concerning the minor premise of this argument, how can you have certainty? … One way of answering this would be to say that there is no way of proving the conclusion, but that the concept of certitude which is present comes as a certain natural consequence, and not as a conclusion. An example, among others, is that white and black are different. This concept of their difference is not gotten by way of conclusion.”