DAVIDE CRIPPA **, Descartes on the Unification of Arithmetic, Algebra and Geometry Via the Theory of Proportions, Revista Portuguesa de Filosofia, T. 73, Fasc. 3/4, Ciências Formais e Filosofia: ...

As far as famous philosophical quotes go, René Descartes’s cogito ergo sum—often translated into English as “I think therefore I am”—is up there with Socrates’s “the unexamined life ...