There was a reluctance to believe that the rendezvous maneuver was an easy thing. In fact, to a layman, if you were to explain what you had to do to perform a rendezvous in space, he would say that sounds so difficult we'll never be able to do it this century.

--Clinton E. Brown, head, Langley Lunar Mission Steering Group on Trajectories and Guidance (from an interview with the author, 17 July 1989)