“America was not built on fear,” President Harry Truman once said. “America was built on courage, on imagination and an unbeatable determination to get the job done.”
When we examine the last part of that quotation—“an unbeatable determination to get the job done”—we may recollect some of the enormous tasks undertaken by Americans in the past century: the building of the Hoover Dam, the winning of World War II, and the Apollo flights to the moon.
