I kept always two books in my pocket, one to read, one to write in. As I walked, my mind was busy fitting what I saw with appropriate words; when I sat by the roadside, I would either read or a pencil and a penny version-book would be in my hand, to note the features of the scene or commemorate some halting stanzas. Thus I lived with words.
Robert Louis Stevenson, Essays of Robert Louis Stevenson
books, reading, words, writing