Knowing that doubt exists we can generalize and assert that conscious acts exist, since doubts are a kind of conscious act (although we haven’t proven that anything besides doubt must exist), yielding “there exist things that present themselves as conscious acts”. From here, if we are to reach Descartes’ conclusion, we must somehow show that the self exists, and not just the conscious acts. There are basically three ways of understanding the “I” in “I think, therefore I exist”, as the real self, as the self that is constituted by the act of thinking, and as the first person perspective.
at 1:49 AM on Jul. 18, 2008