“I don’t believe in luck, Sam. Luck is a tag given by the mediocre to account for the accomplishments of genius.”
Source: The Puppet Masters (1951), Chapter 30 (p. 158)
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Robert A. Heinlein 557
American science fiction author 1907–1988Related quotes

“We must believe in luck. For how else can we explain the success of those we don’t like?”
On his election to Académie Française (1955) Variant translation: Of course I believe in luck. How else does one explain the successes of one's enemies?

“Luck? Good luck? GM, the last time I checked, luck is for losers.”
Extreme Championship Wrestling. September 4, 2007.
To Armando Estrada when he wished CM Punk good luck in his "Last Chance" match with John Morrison.
Extreme Championship Wrestling

Source: The Ginger Star (1974), Chapter 3 (p. 18)

“Luck was with me. I saw no spiders.
Luck was against me. I saw no specters.”
Source: The Two Princesses of Bamarre

“I'm a great believer in luck, and I find the harder I work the more I have of it.”
Has been attributed to Stephen Leacock's "Literary Lapses" (1910), but the quote does not appear in the Project Gutenberg edition http://www.gutenberg.org/files/6340/6340.txt of this work.
Misattributed
Variant: I find that the harder I work, the more luck I seem to have.
Variant: I'm a great believer in luck, and I find the harder I work the more I have of it.

“I am a great believer in luck, and I find the harder I work, the more I have of it”

Lloyd George is portrayed as saying this, as George Nathaniel Curzon was making a complaint against Raymond Poincaré in the Turkish TV series, Kurtuluş (1994), but no prior citation of such a statement has yet been found.
Misattributed