“Believe that the world is an ethereal flower, and ye live.”

"Israfel", st. 7 (1831).

"The Sensual World"; The lyrics of this song are derived from the last lines of Ulysses by James Joyce. Kate had initially wanted to set much of Molly Bloom's Soliloquy to music, just as Joyce had written it, but when the Joyce estate refused, she altered it enough as to not infringe on copyright. As she explained it in an interview: "The song was saying "Yes, Yes" and when I asked for permission they said "No! No!".
Song lyrics, The Sensual World (1989)

The Nuts of Knowledge (1903)

In answer to the question as to whether he ever thought he might be quite mad. Granada Television documentary on Scientology http://www.youtube.com/watch?v=L_w-YWwC1lI#t=1503.

"To the Virgins to Make Much of Time". Compare: "Gather the rose of love whilest yet is time", Edmund Spenser, The Faerie Queene, book ii. canto xii. stanza 75. ; "Let us crown ourselves with rose-buds, before they be withered", Wisdom of Solomon, ii. 8.
Hesperides (1648)
Context: Gather ye rosebuds while ye may,
Old Time is still a-flying,
And this same flower that smiles today
Tomorrow will be dying.
The glorious Lamp of Heaven, the Sun,
The higher he's a-getting
The sooner will his race be run,
And nearer he's to setting.

Source: Battle Royale

Lecture, "Seemliness" (Glasgow, 1902), as cited in: David Brett, C. R. Mackintosh: The Poetics of Workmanship, (2004), p. 56