Will and Certainty

Descartes' inference from 'I think' to 'I am' suppresses a transition from 'I think' to 'I am a thinking being', a transition which plainly entails a reification of the preceding process of Doubting that 'I think' denotes. Now, reification fixes what it refies, and, hence, makes it certain. In other words, in the suppressed transition, Descartes demonstrates a power to certify that is as native as is the ability to doubt. These two powers are manifestations of the two fundamental principles of Experience--Will, which effects Uncertainty, and Comprehension, which, as the example shows, effects Certainty.