“Failure is not an event, but rather a judgment about an event. Failure is not something that happens to us or a label we attach to things. It is a way we think about outcomes. Before Jonas Salk developed a vaccine for polio that finally worked, he tried two hundred unsuccessful ones. Somebody asked him, “How did it feel to fail two hundred times?” “I never failed two hundred times in my life,” Salk replied. “I was taught not to use the word ‘failure.’ I just discovered two hundred ways how not to vaccinate for polio.”