I went out alone
To sing a song or two,
My fancy on a man,
And you know who.
Another came in sight
That on a stick relied
To hold himself upright;
I sat and cried.
And that was all my song -
When everything is told,
Saw I an old man young
Or young man old?
William Butler Yeats
http://www.poemhunter.com/poem/girl-s-song/