After the monkeys came down from the trees and learned to hurl sharp objects, they had had to move into caves for protection--not only from the big predatory cats but, as they began to lose their monkey fur, from the elements. Eventually, they started transposing their hunting fantasies onto cave walls in the form of pictures, first as an attempt at practical magic and later for the strange, unexpected pleasure they discovered in artistic creation.
Time passed. Art came off the walls and turned into ritual. Ritual became religion. Religion spawned science. Science led to big business. And big business, if it continues on its present mindless, voracious trajectory, could land those of us lucky enough to survive its ultimate legacy back into caves again.

Tom Robbins