René Descartes: Frases em inglês
Frases em inglês.“It is not enough to have a good mind. The main thing is to use it well.”
Variante: It is not enough to have a good mind; the main thing is to use it well.
Fonte: Discourse on Method
René Descartes livro Rules for the Direction of the Mind
Rules for the Direction of the Mind: X.379
As quoted in [Clarke, Desmond M., 2006, Descartes : a Biography, Cambridge Press, 67, ISBN 978-0-521-82301-2]
Letter to Pierre Chanut (Nov. 1, 1646) as quoted by Amir Aczel, Descartes' Secret Notebook (2005) citing René Descartes: Correspondance avec Elizabeth et autres lettres (1989) ed., Jean-Marie and M. Beysaade, pp. 245-246.
René Descartes livro Discurso sobre o Método
Fonte: Discourse on Method (Rozprava o metodě)
Je pense, donc je suis.
Le Discours de la Méthode (1637)
Variante: I think, therefore I am.
René Descartes livro Principles of Philosophy
Original Latin: Veritatem inquirenti, semel in vita de omnibus, quantum fieri potest, esse dubitandum
Variant translation: If you would be a real seeker after truth, you must at least once in your life doubt, as far as possible, all things.
Principles of Philosophy (1644)
Variante: In order to seek truth, it is necessary once in the course of our life, to doubt, as far as possible, of all things.