“You must learn from your past mistakes, but not lean on your past successes.”
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Denis Waitley 16
American writer 1933Related quotes
“Don't be afraid of your past. Learn from it so it can empower your present.”
Source: Life, the Truth, and Being Free (2010), p. 35

Don Soderquist “ The Wal-Mart Way: The Inside Story of the Success of the World's Largest Company https://books.google.com/books?id=mIxwVLXdyjQC&lpg=PR9&dq=Don%20Soderquist&pg=PR9#v=onepage&q=Don%20Soderquist&f=false, Thomas Nelson, April 2005, p. 115.
On working hard

“Treat your past as a book that you learn from instead of a hammer that you beat yourself up about.”
citation needed

“Your past is always your past. Even if you forget it, it remembers you.”
What Happened To Goodbye (2011)
Source: What Happened to Goodbye

Source: Samson after hitting a century on 2017 Indian Premier League about his unsuccessful domestic season. Sanju Samson says bad times taught him a lot https://m.economictimes.com/news/sports/sanju-samson-says-bad-times-taught-him-a-lot/amp_articleshow/58144832.cms

“The past is the past. You cannot change it, but you can learn from it.”