A. Discard all your assumptions which when you think about them don't seem very well supported by the evidence | B. Discard everything you can't be sure of | ||
C.Discard all your beliefs and start again |
D. Trust the bible | ||
(C) is in the right spirit but Descartes doesn't want to discard any certain beliefs he already has.
(A) is weaker than (B), and it is (B) that Descartes pursues, doesn't he, ending up in that first movement of his thought with the conclusion that my own existence as a thinking thing is the only belief I am left with, the one thing I can be certain about.
(D) is not a Cartesian touchstone.