Books are the best of things if well used; if abused, among the worst. They are good for nothing but to inspire. I had better never see a book than be warped by its attraction clean out of my own orbit, and made a satellite instead of a system.
Ralph Waldo EmersonLook sharply after your own thoughts. They come unlooked for, like a new bird seen on your trees, and, if you turn to your usual task, disappear; and you shall never find that perception again; never, I say-but perhaps years, ages, and I know not what events and worlds my lie between you and its return.
Ralph Waldo Emerson