What poem do you remember?

This is the first poem I can remember every memmorizing:

Who Has Seen the Wind?
by Christina Rosetti

Who has seen the wind?
Neither I nor you;
But when the leaves hang trembling
The wind is passing through.

Who has seen the wind?
Neither you nor I;
But when the trees bow down their heads
The wind is passing by.

This was either third or fourth grade. And THAT was when I learned the joy of words.

What about you? Do you have a poem that you remember from your childhood? Care to share it?