“The difference between insanity and genius is measured only by success and failure.”
“The distance between insanity and genius is measured only by success”
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Ian Fleming 44
English author, journalist and naval intelligence officer 1908–1964Related quotes

“There is a fine line between insanity and genius.”
Source: The Lost Symbol

“There is a thin line between genius and insanity. I have erased this line.”
As quoted in Celebrity Register: An Irreverent Compendium of American Quotable Notables (1959) by Cleveland Amory.

“Genius is one of the many forms of insanity.”
As quoted in Born under Saturn: the character and conduct of artists : a documented history from antiquity to the French Revolution (1963) by Margot Wittkower.

Source: Alice's Adventures in Wonderland & Other Stories
Euro Trash Cinema magazine interview (March 1996)