“If music be the food of love, play on,
Give me excess of it; that surfeiting,
The appetite may sicken, and so die.”

Orsino, Act I, scene i.
Variant: Music, moody food
Of us that trade in love.
Source: Twelfth Night (1601)

Source: supanet.com/find/famous-quotes-by/axel-munthe/a-man-can-stand-a-lot-as-fqb50991/

Music, When Soft Voices Die http://www.readprint.com/work-1367/Percy-Bysshe-Shelley (1821)
Source: The Complete Poems

Dying thoughts of Lena Feldt as a Spectre "eats the life out of her", Ch. 15 : Bloodmoss <!-- p. 315 -->
His Dark Materials, The Subtle Knife (1997)
Context: She felt a nausea of the soul, a hideous and sickening despair, a melancholy weariness so profound that she was going to die of it. Her last conscious thought was disgust at life; her senses had lied to her. The world was not made of energy and delight but of foulness, betrayal, and lassitude. Living was hateful, and death was no better, and from end to end of the universe this was the first and last and only truth.
Thus she stood, bow in hand, indifferent, dead in life.

Source: Metamorphoses

The Baby of Mâcon

Final Message (6 January 1969).
General sources
Context: To love Me for what I may give you is not loving Me at all. To sacrifice anything in My cause to gain something for yourself is like a blind man sacrificing his eyes for sight. I am the Divine Beloved worthy of being loved because I am Love. He who loves Me because of this will be blessed with unlimited sight and will see Me as I am.