Sourced

• It is impossible to live without failing at something, unless you live so cautiously that you might as well not have lived at all - in which case, you fail by default.
  • J. K. Rowling, 2008 Harvard commencement speech

• Failure is not an option.
  • Gene Kranz, Flight Director NASA, During the Apollo 13 Crisis

• In the lexicon of youth, which fate reserves
  For a bright manhood, there is no such word
  As – fail.
  • Edward Bulwer-Lytton, Richelieu, II.ii

• Half the failures in life arise from pulling in one's horse as he is leaping.
  • Julius and Augustus Hare, Guesses at Truth, I

• I would sooner fail than not be among the greatest.
  • John Keats, Letter to J. A. Hessey, 9th October 1818

• Success is simply a matter of luck. Ask any failure.
  • Earl Wilson, as quoted in 0 to Bitch in 10 Seconds Or Less : Quips and Comebacks for Quick-Witted Women (2005) by Amy Hatch, p. 268

• If at first you don't succeed, cheat, repeat until caught, and then lie!
  • Unknown author, quoted in 0 to Bitch in 10 Seconds Or Less : Quips and Comebacks for Quick-Witted Women (2005) by Amy Hatch, p. 268

Unsourced

• If you're doing your best, you won't have any time to worry about failure.
  • H. Jackson Brown, Jr.

• No matter. Try again. Fail again. Fail better
  • Samuel Beckett

• Failure is all part of success
  • T Dawg

• This organization does not tolerate failure.
  • Ernst Stavro Blofeld, head of SPECTRE, in the James Bond series written by Ian Fleming.

• Failure plus failure plus failure equals success. You only fail when you quit.
  • Jack Hyles
  • Unattributed derivatives: "Failure equals success." and "Failure = Success"

• If we do not succeed we run the risk of failure.
  • Dan Quayle, Vice President of the United States.

• If you do not try you cannot fail.
  • Swami Raj

• There is no failure except in no longer trying.
  • Elbert Hubbard

• You never know where bottom is until you plumb for it.
  • Frederick Laing

• Failure is merely a service station on the road to success!
  • [Anon] BC

• Failure is not Final.
  • John Haggee

• If at first you don't succeed, try, try, again. Then quit. There's no use in being a damn fool about it.
  • W. C. Fields

• How far high failure overleaps the bounds of low success.
  • Lewis Morris

• When a man blames others for his failures, it's a good idea to credit others with his succeses.
  • Howard W. Newton

• Failing to plan is planning to fail.
  • Variant: Failure to plan is planning to fail.
  • Variant: If you fail to plan, you plan to fail.
  • Gordon Broadhead

Anonymous

• Failure teaches you how not to do things.

• If at first you don't succeed, redefine success.

• I was never afraid of failure....failure just made me try harder next time round.

• Failure is not an option unless you make it so.

• If at first you don't succeed, you fail.

• Trying can accomplish anything, even complete failure.

• Failures are the stepping stones to success.

• Failure to try is trying to fail.

• Life. You fail it.

• The BCS is the biggest failure ever known to mankind.