When Dostoevsky was a prisoner in Siberia, far from the world, between four walls and surrounded by endless snow-desolate plains, and asked for help in a letter to his distant family, he only said: "Send me books, books, many books so that my soul does not die! He was cold and asked not for fire, he was very thirsty and asked not for water: he asked for books, that is, horizons, that is, stairs to climb to the summit of the spirit and heart. Federico Garcia Lorca