“Mistakes are a great educator when one is honest enough to admit them”

“Mistakes are a great educator when one is honest enough to admit them and willing to learn from them” is a saying that has been printed on several images.  The saying has been credited to Russian author Aleksandr Solzhenitsyn (1918-2008) since at least 2011, but there’s no evidence that he ever said it.
 
The quotation has been cited in print since at least 1965 and is of unknown authorship.
 
     
Google Books
Complete Speaker’s and Toastmaster’s Library
By Jacob Morton Braude
Englewood Cliffs, NJ: Prentice-Hall
1965
Pg. 49:
Mistakes are a great educator when one is honest enough to admit them and willing to learn from them.
 
17 January 1969, Panama City (FL) News, pg. 3, col. 6 ad:
SUNSHINE LEWIS SAYS:
“Mistakes are a great educator when one is honest enough to admit them and willing to learn from them.”
*Sunshine Wholesale Food Stores.—ed.)
 
Twitter
Arun Charles‏
@livetorque
“Mistakes are a great educator when one is honest enough to admit them and willing to learn from them.” ~ Unknown
8:37 PM - 11 Jun 2009
 
Twitter
Aji Kyari‏
@Aji_Kyari
“Mistakes are a great educator when one is honest enough to admit them and willing to learn from them”-Alexander Solzhenitsyn @elrufai
9:07 AM - 3 Oct 2011
 
Google Books
Power Stars to Light the Business Flame:
The visionaries and you
By Hank Moore
Houston, TX: Division Books
2012
Pg. ?:
“Mistakes are a great educator when one is honest enough to admit them and willing to learn from them.” Anonymous
 
Twitter
Meditation‏
@enlighten4ever
Mistakes are a great educator when one is honest enough to admit them and willing to learn from them. -Unknown
7:00 AM - 4 Mar 2017