“A lie has speed, but truth has endurance”

“A lie can travel halfway around the world while the truth is putting on its shoes” is an old saying. “A lie has speed, but truth has endurance” is a saying that has been credited to Edgar J. Mohn (it’s not known who this is or when he said it) and that has been printed on many posters. The saying has been cited in print since at least 1993.
 
   
20 February 1964, The Daily Record (East Stroudsburg, PA), “Markin Time” by Luther Markin, pg. 4, col. 4:
A lie has speed on any track,
The truth will be faint hearted.
A lie will go to town and back,
Before the truth has started.
   
Hathi Trust Digital Library
March 1993, Reader’s Digest, pg. ?:
A lie has speed, but truth has endurance.—Edgar J. Mohn.
 
2 April 1993, Daily Globe (Ironwood, MI), advertising pullout (pg. 48?):
A lie has speed, but truth has endurance.
 
Google Books
Bangladesh:
Realities of Democracy & Crises
By Nadeem Qadir
Dhaka, Bangladesh: Naweed’s Work in association with the Academic Publishers
1994
Pg. 101:
I strongly believe in what Edgar J. Mohn wrote: “A lie has speed, but truth has endurance.”
   
Google Books
Healing for a Bitter Heart:
Releasing the Power of Forgiveness
By Charles R. Gerber
Joplin, MO: College Press Pub.
1996
Pg. 183:
Edgar J. Mohn is quoted to have said, “A lie has speed, but truth has endurance.”
 
Google Books
Reader’s dDgest Quotable Quotes:
Wit and Wisdom for All Occasions from America’s Most Popular Magazine
By the Editors of Reader’s Digest
Pleasantville, NY: Reader’s Digest
1997
Pg. 157:
A lie has speed, but truth has 14 endurance. — EDGAR J. MOHN
   
Google News Archive
10 March 2008, Gettysburg (PA) Times, pg. D4, col. 1:
“A lie has speed, but truth has endurance.”—Edgar J. Mohn
 
Land of Inspiration
30 Unknown Inspirational Quotes That Will Help You In Life.
27/05/2015 BY YASH BIRAJDAR
(...)
17) “A lie has speed, but truth has endurance.