Quoted: What does the term "installation art" mean? Does it apply to big dark rooms that you stumble into to watch videos? Or empty rooms in which the lights go on and off? Or chaotic spaces brimming with photocopied newspapers, books, pictures and slogans? Almost any arrangement of objects in a given space can now be referred to as installation art, from a conventional display of paintings to a few well-placed sculptures in a garden. It has become the catch-all description that draws attention to its staging, and as a result it's almost totally meaningless.

Quoted: The art in this cave -- called Lascaux, the Sistine Chapel of cave art -- and in many others that dot parts of France and Spain deservedly ranks with the greatest masterworks of Western art. Yet these paintings have provoked as much vexed speculation as they have wonder and awe: What was their purpose? Why are there so many pictures of animals? The painters had many colors at their disposal, but why do black and red dominate? Why are there no pictures of sky, moon or trees? What are the strange geometric signs found in many of the caves? Why are there few images of people? Just what does it all mean? Such questions have kept generations of scholars and archaeologists busy trying to find a definitive if ever elusive explanation.