51.   Scientific knowledge typically develops in incremental stages, not in great leaps in understanding or big breakthroughs.

52.   Society, of course, did not go from thinking oral sex was perverted to embracing it in one great leap.

53.   Still, for many retailers, letting outsiders handle their customers requires too great a leap of faith.

54.   That may not qualify as a great leap forward.

55.   That particular phrasing was, to say the least, a great leap of interpretation.

56.   The ability to download consciousness into a computer finally frees people from their bodies, signifying the next great leap forward in human evolution.

57.   The bravura that allows these great leaps of abstraction comes from the feeling that we can stand outside the universe and see it whole.

58.   The IOC would like to see a great leap forward in the scheduling of test events, considered vital to the smooth functioning of the Games.

59.   The luxury Beech is a great leap forward in Jaguar air transport.

60.   The score, especially in the third hour, seems not to be hurtling the show forward in great leaps of feeling but stopping it dead in its tracks.