Meditations are a systematic attempt to put aside every belief that had been accepted on some merely external authority and which in itself was not beyond doubt, and to work his way to what he considered to be the one absolutely indubitable fact: cogito, "I think." On the foundation of this cogito, using as criterion of validity the clearness and distinctness of ideas, he meant to rebuild a realm of certain knowledge." /> Introduction - Cunningham Suzanne | sdvig press