“I know of a wild region whose librarians repudiate the vain superstitious custom of seeking any sense in books and compare it to looking for meaning in dreams or in the chaotic lines of one's hands . . . They admit that the inventors of writing imitated the twenty-five natural symbols, but they maintain that this application is accidental and that books in themselves mean nothing. This opinion - we shall see - is not altogether false.”

“This much is already known: for every sensible line of straightforward statement, there are leagues of senseless cacophonies, verbal jumbles and incoherences. (I know of an uncouth region whose librarians repudiate the vain and superstitious custom of finding a meaning in books and equate it with that of finding a meaning in dreams or in the chaotic lines of one's palm . . . They admit that the inventors of this writing imitated the twenty-five natural symbols, but maintain that this application is accidental and that the books signify nothing in themselves. This dictum, we shall see, is not entirely fallacious.)”

“Philosophy [nature] is written in that great book which ever is before our eyes -- I mean the universe -- but we cannot understand it if we do not first learn the language and grasp the symbols in which it is written. The book is written in mathematical language, and the symbols are triangles, circles and other geometrical figures, without whose help it is impossible to comprehend a single word of it; without which one wanders in vain through a dark labyrinth.”

“I maintain that any writer of a book is fully authorised in attaching any meaning he likes to a word or phrase he intends to use. If I find an author saying, at the beginning of his book, "Let it be understood that by the word 'black' I shall always mean 'white,' and by the word 'white' I shall always mean 'black,'" I meekly accept his ruling, however injudicious I think it.”

“the difference between poets and mystics . . . The mystic nails a symbol to one meaning that was true for a moment but soon becomes false. The poet, on the other hand, sees that truth while it's true but understands that symbols are always in flux and that their meanings are fleeting.”

“Aziraphale collected books. If he were totally honest with himself he would have to have admitted that his bookshop was simply somewhere to store them. He was not unusual in this. In order to maintain his cover as a typical second-hand book seller, he used every means short of actual physical violence to prevent customers from making a purchase. Unpleasant damp smells, glowering looks, erratic opening hours - he was incredibly good at it.”