The most difficult subjects can be explained to the most slow- witted man if he has not formed any idea of them already; but the simplest thing cannot be made clear to the most intelligent man if he is firmly persuaded that he knows already, without a shadow of doubt, what is laid before him.
Leo TolstoyOften a man goes on for years imaging that the religious teaching that had been imparted to him since childhood is still intact, while all the time there is not a trace of it left in him.
Leo Tolstoy