TEDx Speech: If at first you don't succeed. Quit. http://www.youtube.com/watch?v=6MfZ6Rkk-oI johnkcoyleDecember 15, 2012cycling, design around weakness, epo, hammer, how to find your strengths, how to know when to quit, john coyle, john k coyle, johnkcoyle, lance armstrong, Lillehammer, max power test, Mike Walden, Nancy Kerrigan, race your strengths, Short Track Speedskating, Speedskating, tanya harding, ted video, v02 max test, wingate testComment Facebook0 Twitter LinkedIn0 0 Likes