yakk: basically the philosopher is question (I think it was sartre but I could be wrong) used this as a basis to say that God could never give a strong enough proof that such and such was what God wanted him to do. For all purported messages from God to him (or to the general populace), and for any conceivable hypothetical message, there always seems to be a more plausible argument about how that message came to be. Therefore, it's better to create a direction of life, a way of living, independently of any expectation of what God wants you to do. So goes the argument. Is it sartre? which work is it from?