A search for simpler forms: Toulouse-Lautrec's "La Danse au Moulin Rouge" at the Musee D'Orsay. A hundred and thirty years ago, the highest point in Paris was well on its way to becoming the world's most important art hub. Van Gogh lived at 10 Rue Cortot in the 1880s. So did Gaugin (but not at the same time). Picasso arrived in the fall of 1900, during the World's Fair. They wore Lenny Kravitz scarves and big coats with paintbrushes poking out of their pockets, something we can say with certainty because they painted portraits of one another. In the hillside's steep streets of mud, they lived with tightrope walkers, acrobats and dancing girls and ate at the glorified soup kitchens at Montmartre's pinnacle, around the Place du Tertre. Climbing the hill was not as easy as it is today ― it was too steep for horse-drawn carriages, and the funiculaire would not be built until 1901. It was a slum, really. Today's French government, which tosses ar...