“The greatest mistake you can make in life is to be continually fearing you will make one”

“The greatest mistake you can make in life is to be continually fearing you will make one” is a quotation from American author Elbert Hubbard (1856-1915) that appeared in print in 1901. The quotation has been frequently cited.
 
       
Wikipedia: Elbert Hubbard
Elbert Green Hubbard (19 June 1856 – 7 May 1915) was an American writer, publisher, artist, businessman, anarchist and libertarian socialist philosopher. He was an influential exponent of the Arts and Crafts movement, founding the Roycroft enterprises. He and his wife Alice Moore Hubbard died in the sinking of the RMS Lusitania.
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The Note Book of Elbert Hubbard (1927)
The greatest mistake you can make in life is to be continually fearing you will make one.
 
9 November 1901, Denver (CO) Post, “The Philistine,”  pg. 12, col. 5:
The greatest mistake you can make in life is to be continually fearing you will make one.
 
Chronicling America
30 November 1901, The Intermountain Catholic (Salt Lake City, UT), pg. 7, col. 5:
ADAGES FROM EAST AURORA.
(Elbert Hubbard in Philadelphia North American.)
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The greatest mistake you can make in life is to be continually fearing you will make one.
 
Chronicling America
22 August 1905, Paducah (KY) Sun, pg. 4, col. 1:
Daily Thought.
“The greatest mistake you can make in life is to be continually fearing you will make one.”
   
Google Books
Ultimate Leadership:
21 Irrefutable Laws, Developing the Leader Within You
By John Maxwell
Nashville, TN: Thomas Nelson, Inc.
2007
Pg. 306:
Elbert Hubbard said that the greatest mistake a person can make is to be afraid of making one.
 
Google Books
“The Greatest Quotations of All-Time”
By Anthony St. Peter
Xlibris (Xlibris.com)
2010
Pg. 243:
The greatest mistake you can make in life is to be continually fearing you will make one.
Elbert Hubbard