“Love, like the yellow daffodil, is Lord of all I know.”

Source: Song of Solomon

On himself, as quoted in Interview by Julie Webb for New Musical Express (12 March 1974) http://www.queenarchives.com/index.php?title=Freddie_Mercury_-_03-12-1974_-_NME; he is often reported to have said "I'm as gay as a daffodil, my dear!" but it does not appear in that form in the article.

Song lyrics, Blood on the Tracks (1975), If You See Her, Say Hello
Variant: I know every scene by heart they all went by so fast

Black and Yellow, written by Wiz Khalifa, Mikkel Eriksen, Tor Hermansen
Studio Albums, Rolling Papers (2011)

and I lived on rum, I tell you.
Source: Treasure Island (1883), Ch. 3, The Black Spot.

Georgic III, lines 380.
The Works of Virgil (1697)

Book III, lines 242–244 (tr. John Dryden).
Georgics (29 BC)

Part I, section xxii, stanza 2
Maud; A Monodrama (1855)