Ballade de la Jolie Marion in White Stains by Aleister Crowley.

“It is a sweet thing to be loved,
Although my sighs in absence wake,
Although my saddening heart is moved,
I smile and bear for love’s dear sake.
My songs their wonted music make,
Joyous and careless, songs of youth,
Because the sacred lips of both
Are met to kiss the last good-bye,
Because sweet glances weep for ruth
That we must part, and love must die.” [via]