Miguel de Cervantes,
Don Quixote — Volume 2, Chapter XII
(1885)
“ But listen, for it seems he is tuning a lute or guitar, and from the way he is spitting and clearing his chest he must be getting ready to sing something.""Faith, you are right," said Sancho, "and no doubt he is some enamoured knight.""There is no knight-errant that is not," said Don Quixote; "but let us listen to him, for, if he sings, by that thread we shall extract the ball of his thoughts; because out of the abundance of the heart the mouth speaketh." ”
