 Suppose there is a significant difference between a priori and empirical justification. This still does not tell us what the basis of a priori justification is. One view is that rational intuitions or insights are the bases of a priori justification; experiences, as construed above, the bases of empirical justification. Before discussing the nature of rational intuitions or insights, we should first distinguish between intuitions and intuitive judgments and consider what the content of intuitive judgments evoked in thought experiments is.