The practice of “sharing” is now so widespread and ingrained in our daily lives that it bids fair to become the distinguishing feature of our age, much as the use of stone tools once defined an earlier period of progressive enlightenment. As with other important developments in our cultural and…

Only one false note is struck in the National Gallery's exhibition of French print-making from the late nineteenth century. It's there in the show's catalogue, where the otherwise excellent lead essay speaks of the "numerous artists, especially Bonnard," who "played a dynamic role" in Paris in the…