Descartes on the dangers of false opinion

On the onset of his quest for pure and truthful knowledge, René Descartes decides to ‘overthrow’ all his former opinions since the latter may be built on sandy foundations. However, for fear of finding himself in a mental no man’s land, the philosopher sets for himself the rules of a ‘provisional morality’, the first being ‘to obey the laws and customs of my country’, a precept immediately followed by the injunction: ‘holding constantly to the religion in which, by God’s ...