What are descartes?

Famous quotes containing the word descartes:

    ... moral certainty is certainty which is sufficient to regulate our behaviour, or which measures up to the certainty we have on matters relating to the conduct of life which we never normally doubt, though we know that it is possible, absolutely speaking, that they may be false.
    —René Descartes (1596–1650)

    All that is very clearly and distinctly conceived is true.
    —René Descartes (1596–1650)

    it is not possible for there to be in us any thought of which, at the moment it is in us, we are not conscious.
    —René Descartes (1596–1650)