What verse is for the poet, dialectical thinking is for the philosopher. He grasps for it in order to get hold of his own enchantment, in order to perpetuate it.
That is a simple rule, and easy to remember. When I, a thoughtful and unblessed Presbyterian, examine the Koran, I know that beyond any question every Mohammedan is insane; not in all things, but in religious matters.
That is not the best sermon which makes the hearers go away talking to one another and praising the speaker, but which makes them go away thoughtful and serious, and hastening to be alone.