“The new museum wasn’t the only thing being built: The collections were, too. The MoMA has acquired hundreds of works since the exodus. The words “New Acquisition” appear on label after label. While museums that ignored the 20th century lament that it’s too late now to catch up — the art isn’t available and its cost would be prohibitive — the MoMA has received from its supporters a windfall that would make up an entire 20th-century department in any other institution. And these new additions match the quality of the existing holdings — which is staggering. Very few things are less than the finest of their kind.”