John Kendrick Bangs - The Little Elf

I met a little Elf-man, once,
Down where the lillies blow.
I asked him why he was so small,
And why he didn't grow.

He slightly frowned, and with his eye
He looked me through and through.
'I'm just as big for me,' said he,
'As you are big for you.'

John Kendrick Bangs

http://www.poemhunter.com/poem/the-little-elf/