This article presents an account of the nature of intuition that may serve as a unifying framework for the study of intuition in philosophy and psychology.It first demonstrates the integration of the recent philosophical liter-ature,on the basis of a prototype of intellectual appearance,which is derived from a common kind of paradox—thus showing the analogy with perception to be non-essential to the conception of intellectual appearance.Follow-ing an explanation of the general spontaneity of intuitive appearance,the concluding section then shows how the ac-count developed in the previous sections not only integrates previous philosophical and psychological work on intui-tion but may also be used to systematise future study of intuition in both disciplines.