Boy! There are times when I get the feeling that science develops things that are supposed to be good for us, but that just make trouble.” Dr. Tresselt’s blue eyes seemed to throw out sparks of amusement. “I know how you feel, Joe,” he said. “But my stars, boy, nobody can be alive and never have any trouble! Being alive is just meeting troubles every day and overcoming them. Just to stand up straight against the pull of gravity is a fight, isn’t it?