. . . . . . "\\\"I think therefore I am\\\"" . "cogito, ergo sum" . . "cogito ergo sum" . . . . . . . "Cartesian principle" . "cogito" . . . . "Cartesian Cogito" . "I think, therefore, I am" . "I think, therefore I am" . "Cogito, ergo sum" . . "personal deduction" . "Cogito ergo sum" . "I think therefore I am" . . . . . . . "the cogito" . . . . . . "I exist" . "Cogito" . . . . . . . "Cogito, ergo sum" . . . . "We Think, Therefore We Are" . . . .