Abstract

Descartes convinced himself that the safest way was to ‘begin’ by doubting everything… Genuine doubt does not talk of beginning with doubting. The pragmatist knows that doubt is an art which has to be acquired with difficulty; and his genuine doubts will go much further than those of any Cartesian.In 1906, while ruminating on the reality of God, Peirce considers again Descartes’ attempt to doubt everything. Such a task is the preliminary to Descartes’ project of first philosophy, and that project aims to discover metaphysical truths or the first causes of things. In response to Descartes, Peirce returns to a claim that he had been defending since...