“These flowers will be rotten in a couple hours. Birds will crap on them. The smoke here will make them stink, and tomorrow a bulldozer will probably run over them, but for right now they are so beautiful.”

(9th May 1829) Change
(20th June 1829) Fame : An Apologue See The Vow of the Peacock, as The Three Brothers
(29th August 1829) First Grave See The Vow of the Peacock as The Single Grave
The London Literary Gazette, 1829

Regarding his oft-cited quote stating that actors are cattle; as paraphrased and quoted in "Town Called Hollywood: Director Pleads Off Poundage" http://www.mediafire.com/view/ix2ammmxkb3flqx/Screen%20Shot%202018-09-11%20at%2012.56.17%20AM.png by Philip K. Scheuer, in The Los Angeles Times (30 May 1943).
Context: [T]he director passed off the phrase as one of his "Machiavellian quips," not to be taken seriously. "Let us say, rather, that actors are a necessary evil," he cautioned, with a straight face. "As a matter of fact, I couldn't work if I weren't on friendly terms with them; I'll bend over backward every time. Besides, I get into each picture I make, if only for a couple of seconds—so I'm probably a frustrated actor at heart myself."

Enchantment (1999)

Volume 3, Ch. 4
Fiction, The Book of the Long Sun (1993–1996)

Saint Hill Special Briefing Course 35 (19 July 1961).

http://motls.blogspot.com/2007/06/marijuana-creates-holes-in-lungs.html
The Reference Frame http://motls.blogspot.com/

Sally Poplin, as quoted in An Uncommon Scold (1989) by Abby Adams, p. 170
Misattributed