[1][2][3] Clark recovered full function in a couple of years[1] and was invited to speak to local high school kids about his recovery.

[1] Clark was also the general session keynote speaker at the United Nations World Congress in Hamburg, Germany, in 1992.

[1] In 2005, Clark traveled to Iraq and Afghanistan and spoke 23 times on 10 bases plus on the USS Harry S. Truman (CVN-75) aircraft carrier.

[1] Clark was approached by Mark Hansen and Jack Canfield, the co-creators of the Chicken Soup for the Soul series, about how he marketed One Minute Messages.

Clark's Chicken Soup for the College Soul was number two on the New York Times bestseller list in 1999, with over 1,000,000 copies in print.