1 When all the world is young, lad, <br />2 And all the trees are green; <br />3 And every goose a swan, lad, <br />4 And every lass a queen; <br />5 Then hey for boot and horse, lad, <br />6 And round the world away! <br />7 Young blood must have its course, lad, <br />8 And every dog his day. <br /> <br />9 When all the world is old, lad, <br />10 And all the trees are brown; <br />11 And all the sport is stale, lad, <br />12 And all the wheels run down; <br />13 Creep home, and take your place there, <br />14 The spent and maimed among; <br />15 God grant you find one face there, <br />16 You loved when all was young.<br /><br />Charles Kingsley<br /><br />http://www.poemhunter.com/poem/young-and-old/