When my moustache curled,
And my hair was black,
And I wore tight trousers
And a diamond stud,
I was an excellent knave of hearts and took many a trick.
But when the gray hairs began to appear--
Lo! a new generation of girls
Laughed at me, not fearing me,
And I had no more exciting adventures
Wherein I was all but shot for a heartless devil,
But only drabby affairs, warmed-over affairs
Of other days and other men.
And time went on until I lived at Mayer's restaurant,
Partaking of short-orders, a gray, untidy,
Toothless, discarded, rural Don Juan. . .
There is a mighty shade here who sings
Of one named Beatrice;
And I see now that the force that made him great
Drove me to the dregs of life.

Edgar Lee Masters

http://www.poemhunter.com/poem/lucius-atherton/