December, 1903 C.P. Cavafy, Collected Poems.

And if I cannot speak about my love—

if I do not talk about your hair, your lips, your eyes,
still your face that I keep within my heart,
the sound of your voice that I keep within my mind,

the days of September that rise in my dreams,
give shape and color to my words, my sentences,
whatever theme I touch, whatever thought I utter. 

 C.P. Cavafy, Collected Poems. 

http://www.cavafy.com/poems/content.asp?id=164&cat=4