61.   Scratch the surface, though, and things look different.

62.   Scratch the surface of one defining moment and sometimes you find another.

63.   Scratch the surface, however, and another picture emerges.

64.   Sparsely installed, it maintains its elegant store-window look, but it barely scratches the surface of a very robust trend in current art.

65.   Still, a nine-minute sample of Yes comes across as a sound bite, just scratching the surface.

66.   That is just scratching the surface.

67.   That just scratches the surface.

68.   Supposedly a commentary on the way Islamic culture encompasses religion, beauty and extreme violence, the piece barely scratches the surface of its complex subject.

69.   Sure, I have wrestled with this issue in some columns, but I have only scratched the surface.

70.   That only scratches the surface of the plot, not to mention the weird back alleys where the Coens like to take their films.