Cogito ergo sum - Wikipedia, the free encyclopedia
Cogito ergo sum[a] (/ˈkoʊɡɨtoʊ ˈɜrɡoʊ ˈsʊm/, also /ˈkɒɡɨtoʊ/, /ˈsʌm/; Classical Latin: [ˈkoːɡitoː ˈɛrɡoː ˈsʊm], "I think, therefore I am") is a philosophical proposition by René Descartes. The simple meaning of the Latin phrase is that thinking about one’...