“From success, you learn absolutely nothing. From failure and setbacks conclusions can be drawn. That goes for your private life as well as your career.”
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Niki Lauda 24
Austrian former Formula 1 racing driver 1949–2019Related quotes
It – How Churches and Leaders Can Get It and Keep It (2008, Zondervan)

“When I think about my career, my successes are built on learning from failures.”
Boy Genius Report: "When I think about my career, my successes are built on learning from failures: Microsoft CEO Satya Nadella" https://www.bgr.in/news/when-i-think-about-my-career-my-successes-are-built-on-learning-from-failures-microsoft-ceo-satya-nadella/ (29 December 2015)
“Nothing fails like success because we don't learn from it. We learn only from failure.”
Kenneth Boulding (1971) "The diminishing returns of science" in: New Scientist. (March 25, 1971) Vol. 49, nr. 744. p. 682
1970s
Context: Perhaps the most difficult ethical problem of the scientific community arises not so much from conflict with other subcultures as from its own success. Nothing fails like success because we don't learn from it. We learn only from failure.
Source: 1970s, Ecodynamics: A New Theory Of Societal Evolution, 1978, p. 42

“Success is the ability to go from failure to failure without losing your enthusiasm.”
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

“You can measure your worth by your dedication to your path, not by your successes or failures.”
Source: Big Magic: Creative Living Beyond Fear