You can quote Dante, Hamlet, Catcher in the Rye or even Lord of the Rings and no one questions your intentions for the reason that you're quoting someone's work. However, you can't quote Thoreau, Nietsche, Jesus or Buddha since you are then quoting the man, not the work. The truth of fiction lives on eternally and the quest for ideological philosophy is scrutinized and questioned by the universal man. Therefore, fiction does not lie.