“All is mutability, and thus your three hundred terces has fluctuated to three.”
Source: Quotations and text from the Dying Earth novels, The Eyes of the Overworld (1966), Chapter 7, "The Manse of Iucounu"
John Holbrook "Jack" Vance was an American mystery, fantasy, and science fiction writer. Though most of his work has been published under the name Jack Vance, he also wrote 9 mystery novels using his full name John Holbrook Vance, three under the pseudonym Ellery Queen, and one each using the pseudonyms Alan Wade, Peter Held, John van See, and Jay Kavanse. Some editions of his published works give his year of birth as 1920.
Vance won the World Fantasy Award for Life Achievement in 1984 and he was a Guest of Honor at the 1992 World Science Fiction Convention in Orlando, Florida. The Science Fiction and Fantasy Writers of America made him its 14th Grand Master in 1997 and the Science Fiction Hall of Fame inducted him in 2001, its sixth class of two deceased and two living writers.
Among his awards for particular works were: Hugo Awards, in 1963 for The Dragon Masters, in 1967 for The Last Castle, and in 2010 for his memoir This is Me, Jack Vance!; a Nebula Award in 1966, also for The Last Castle; the Jupiter Award in 1975; the World Fantasy Award in 1990 for Lyonesse: Madouc. He also won an Edgar for the best first mystery novel in 1961 for The Man in the Cage.
A 2009 profile in The New York Times Magazine described Vance as "one of American literature's most distinctive and undervalued voices". He died at his home in Oakland, California on May 26, 2013, aged 96.

“All is mutability, and thus your three hundred terces has fluctuated to three.”
Source: Quotations and text from the Dying Earth novels, The Eyes of the Overworld (1966), Chapter 7, "The Manse of Iucounu"
“The purportedly free was seldom as represented.”
Source: Dying Earth (1950-1984), The Eyes of the Overworld (1966), Chapter 6, "The Cave in the Forest"
“If there were no such creatures as minstrel-maidens, it would be necessary to invent them.”
Jack Vance book The Dragon Masters
Section 7
The Dragon Masters (1962)
Section 5 (p. 177)
Short fiction, Rumfuddle (1973)
“Until work has reached its previous stage nympharium privileges are denied to all.”
Source: Dying Earth (1950-1984), The Eyes of the Overworld (1966), Chapter 4, "The Sorcerer Pharesm"
Jack Vance book The Languages of Pao
Source: The Languages of Pao (1958), Chapter 14 (p. 149)
Source: Lyonesse Trilogy (1983-1989), The Green Pearl (1985), Chapter 17, section 2 (p. 657)
Jack Vance book To Live Forever
Source: To Live Forever (1956), Chapter VII, section 1
Jack Vance book Space Opera
Source: Space Opera (1965), Chapter 13 (p. 130)
“I'm only giving orders because I'm more efficient and smarter than you are.”
Jack Vance book The Five Gold Bands
Source: The Five Gold Bands (1950), Chapter 5 (p. 57)
“"The contingency is remote." (This is also a Jeeves quote in the PG Wodehouse Novels)”
Source: Dying Earth (1950-1984), The Eyes of the Overworld (1966), Chapter 1, "The Overworld"
“Count me not your friend but the enemy of your enemies.”
Source: Lyonesse Trilogy (1983-1989), The Green Pearl (1985), Chapter 8, section 3 (p. 480)
“I am not called Cugel the Clever for nothing.”
Source: Dying Earth (1950-1984), The Eyes of the Overworld (1966), Chapter 3, "The Mountains of Magnatz"
Source: Dying Earth (1950-1984), Cugel's Saga (1983), Chapter 5, section 1, "The Seventeen Virgins"
Source: Dying Earth (1950-1984), Cugel's Saga (1983), Chapter 6, section 2, "Spatterlight"
“Control is necessary and even good—so long as I do the controlling.”
Jack Vance book Emphyrio
Source: Emphyrio (1969), Chapter 11
“I have seen all I care to see and heard rather more.”
Source: Lyonesse Trilogy (1983-1989), Madouc (1989), Chapter 6, section 1 (p. 792)
"Morreion", chapter 8
Dying Earth (1950-1984), Rhialto the Marvellous (1984)
Source: Dying Earth (1950-1984), The Eyes of the Overworld (1966), Chapter 1, "The Overworld"
“If the past is a house of many chambers, then the present is the most recent coat of paint.”
Section 12 (p. 211)
Short fiction, Rumfuddle (1973)
“Damned meddlers. It’s hard to know when their curiosity is official and when it’s just curiosity.”
Jack Vance book The Five Gold Bands
Source: The Five Gold Bands (1950), Chapter 6 (p. 65)
“My fees are not too high. Your wage scale may simply be too low.”
Jack Vance book Showboat World
Source: Showboat World (1975), Chapter 12 (p. 132)
Source: Lyonesse Trilogy (1983-1989), The Green Pearl (1985), Chapter 6, section 5 (p. 451)
“Die then. This is my cure for sore knees.”
Source: Lyonesse Trilogy (1983-1989), Suldrun's Garden (1983), Chapter 26, section 4 (p. 299)
Jack Vance book Emphyrio
Source: Emphyrio (1969), Chapter 11
“Your thoughts move with the deft precision of worm-tracks in the mud.”
Jack Vance book The Languages of Pao
Source: The Languages of Pao (1958), Chapter 14 (p. 149)
Source: Lyonesse Trilogy (1983-1989), The Green Pearl (1985), Chapter 6, section 5 (p. 449)
“We’ll rack our brains and either solve your problem or come up come up with new and better ones.”
Section 3 (p. 172)
Short fiction, Rumfuddle (1973)
Section 4 (pp. 173-174)
Short fiction, Rumfuddle (1973)
Jack Vance book Showboat World
Source: Showboat World (1975), Chapter 13 (p. 151)
“Dango, Pume, Thwither: down with Visbhume’s breeches; let him hold his backside at the ready.”
Source: Lyonesse Trilogy (1983-1989), The Green Pearl (1985), Chapter 9, section 4 (p. 505)
Jack Vance book The Languages of Pao
Source: The Languages of Pao (1958), Chapter 11 (p. 112)
Infinity Science Fiction (July 1957)
Short fiction, The Men Return (1957)
Melancthe considered a moment before responding. “Perhaps,” she said, “you are visiting the wrong house. Or perhaps you are the wrong visitor.”
Source: Lyonesse Trilogy (1983-1989), Madouc (1989), Chapter 5, section 4 (p. 783)
Jack Vance book Big Planet
Source: Big Planet (1957), Chapter 8 “A Matter of Vitamins” (p. 80)
“Nothing is more conspicuous than a farting princess.”
Source: Lyonesse Trilogy (1983-1989), Suldrun's Garden (1983), Chapter 3, section 3 (p. 31)
Jack Vance book Space Opera
Source: Space Opera (1965), Chapter 12 (p. 127)
Source: Lyonesse Trilogy (1983-1989), The Green Pearl (1985), Chapter 12, section 1 (p. 545)
“You are a particularly clever girl: almost as clever as you are appealing to the eye.”
Source: Lyonesse Trilogy (1983-1989), The Green Pearl (1985), Chapter 16, section 3 (p. 635)
“He was neither lazy nor incompetent; he merely had occupational claustrophobia.”
Jack Vance book Space Opera
Source: Space Opera (1965), Chapter 4 (p. 30)
Source: Dying Earth (1950-1984), Cugel's Saga (1983), Chapter 1, section 1, "Flutic"
“The life we’ve been leading couldn’t last forever. It’s a wonder it lasted as long as it did.”
Jack Vance book The Last Castle
Source: The Last Castle (1966), Chapter 2, section 1
Jack Vance book To Live Forever
Source: To Live Forever (1956), Chapter XII, section 4
Jack Vance book The Last Castle
Source: The Last Castle (1966), Chapter 3, section 2
Source: Dying Earth (1950-1984), The Dying Earth (1950), Chapter 6, "Guyal of Sfere"
“Another busy day! So let’s to business. The clock moves forward; wasted time is life defeated!”
Jack Vance book To Live Forever
Source: To Live Forever (1956), Chapter VIII, section 3
Jack Vance book To Live Forever
Source: To Live Forever (1956), Chapter XVI, section 3
Source: Dying Earth (1950-1984), Cugel's Saga (1983), Chapter 3, section 2, "Faucelme"
“A notable scheme has occurred to me.”
Source: Lyonesse Trilogy (1983-1989), The Green Pearl (1985), Chapter 1, section 4 (p. 371)
“It had been suggested to her that the flaw lay not in the universe but in herself.”
Source: Dying Earth (1950-1984), The Dying Earth (1950), Chapter 3, "T'Sais"