Today is the 84th birthday of Gene Kranz, whose most famous quote is “Failure is Not an Option”. He also famously ordered the mission controllers to write “Tough and Competent” on their blackboards after Apollo 1. Those are the quotes I know him by.
He was the flight director during the scary Apollo 13 mission, leading mission control to bring Apollo 13′s crew home safely as portrayed by the 1995 Apollo 13 movie. His wife made mission vests for him also. Before his NASA career, he fought in the Air Force in Korea. He helped with the mission control on the Mercury-Redstone 1 flight with Chris Kraft, which only flew four inches high.
I recently read in an aviation maganize by EAA that he built a working full-size airplane in his garage during his retirement. He sadly never got to fly it. He got busy so he lent the plane to a nearby Texas museum, then in 2008 a hurricane came through, ruining the plane.