Cartesian doubt is the basis for Descartes' statement, ""Cogito ergo sum"" ("I think, therefore I am"). Methodological skepticism is distinguished from philosophical skepticism in that methodological skepticism is an approach that subjects all knowledge claims to scrutiny with the goal of sorting out true from false claims, whereas philosophical skepticism is an approach that questions the possibility of certain knowledge. Cartesian doubt is methodological. Its purpose is to use doubt as a route to certain knowledge by finding those things which could not be doubted. The fallibility of sense data in particular is a subject of Cartesian doubt. There are several interpretations
Mr. Cogito Laments On The Pettiness of Dreams"), "Pan Cogito a poeta w pewnym wieku" ("Mr. Cogito And A Poet Of A Certain Age"), "Pan Cogito a pop" ("Mr Cogito And Pop Music"), "Pan Cogito o magii" ("Mr. Cogito On Magic"), "Pan Cogito spotyka w Luwrze posążek Wielkiej Matki" ("Mr. Cogito Encounters A Figurine Of The Great Mother In The Louvre"), "Pan Cogito opowiada o kuszeniu Spinozy" ("Mr. Cogito Narrates The Temptation Of Spinoza"), "Pan Cogito otrzymuje czasem dziwne listy" ("Mr Cogito Occasionally Receives Strange Letters"), "Rozmyślania Pana Cogito o odkupieniu" ("Mr Cogito's Meditations On Redemption"), "Pan Cogito szuka rady" ("Mr. Cogito