This great purple butterfly, <br />In the prison of my hands, <br />Has a learning in his eye <br />Not a poor fool understands. <br /> <br />Once he lived a schoolmaster <br />With a stark, denying look; <br />A string of scholars went in fear <br />Of his great birch and his great book. <br /> <br />Like the clangour of a bell, <br />Sweet and harsh, harsh and sweet. <br />That is how he learnt so well <br />To take the roses for his meat.<br /><br />William Butler Yeats<br /><br />http://www.poemhunter.com/poem/another-song-of-a-fool/
