“All stemmed from Quoyle's chief failure, a failure of normal appearance.”

Song lyrics, Bringing It All Back Home (1965), Love Minus Zero/No Limit

Attribution debunked in Langworth&#x27;s Churchill by Himself. The earliest close match located by the Quote Investigator is from the 1953 book How to Say a Few Words by David Guy Powers. <br class="br">Misattributed <br class="br">Variant: Success is the ability to go from one failure to another with no loss of enthusiasm. <br class="br">Source: 1953, How to Say a Few Words by David Guy Powers, Quote p. 109, Doubleday &amp; Company, Garden City, New York. Referenced by Quote Investigator http://quoteinvestigator.com/2014/06/28/success

No definite source has been found for this statement; though most often attributed to Sir Winston Churchill, and sometimes to Abraham Lincoln, it has only rarely been attributed to Campbell.
Disputed

Rogers Commission Report (1986)
Context: It appears that there are enormous differences of opinion as to the probability of a failure with loss of vehicle and of human life. The estimates range from roughly 1 in 100 to 1 in 100,000. The higher figures come from the working engineers, and the very low figures from management. What are the causes and consequences of this lack of agreement? Since 1 part in 100,000 would imply that one could put a Shuttle up each day for 300 years expecting to lose only one, we could properly ask "What is the cause of management's fantastic faith in the machinery?"
We have also found that certification criteria used in Flight Readiness Reviews often develop a gradually decreasing strictness. The argument that the same risk was flown before without failure is often accepted as an argument for the safety of accepting it again. Because of this, obvious weaknesses are accepted again and again, sometimes without a sufficiently serious attempt to remedy them, or to delay a flight because of their continued presence.