Steve Stirling, CEO of MAP International, is the author of the book The Crutch of Success, from Polio to Purpose, Bringing Health & Hope to the World. Stirling contracted polio as a child and was placed in an orphanage. He was later adopted by “a generous American couple who loved me and provided for me.” In his post for Rotary Voices, he explains how he learned to consider his weakness as his greatest strength.