Second, she shares Kant’s claim that reasoning is necessary because humans are finite and interdependent beings. Third, she agrees with Kant that the principles of reason are not revealed to us by intuition or introspection: We must use our rational powers to figure out what these principles are. Finally, she adopts Kant’s claim that to fulfill its distinctive function, norms of reasoning must be universal. The differences between Kant’s and O’Neill’s views concern the justification of the claim