Child, I will give you rings to wear,
And, if you love them, dainty dresses,
Flowers for your bosom and your hair,
And, if you love them, fond caresses;

And I will give you of my days,
And I will leave, when you require it,
My dreams, my books, my wonted ways,
Content if only you desire it.

Love's captive, now his fugitive,
All this I give you, for my part.
I ask but what I cannot give,
I ask no more than this: your heart.

Arthur Symons

http://www.poemhunter.com/poem/declaration-6/