Crossword clues for the word: COGITOERGOSUM The word COGITOERGOSUM has appeared as an answer to at least 10 crossword clues on different crossword puzzles. Crossword clues for COGITOERGOSUM Showing 1 to 10 of 10 results Clue(s) "17th-century existence ""proof""" Cartesian conclusion Cartesian phrase Cartesian rationale Descartes axiom Descartes found this truth to be self-evident Descartes observation Descartes's statement about pondering an addition problem? Philosophical axiom Self expression?