Half a century ago, during the Sino-Japanese War, I was a student at National Southwest Associated University at Kunming in southern China, Lectures were often accompanied by the pitter-patter of rain on the tin roofs of the classrooms; that mud floors were full of holes; and wind blew through paneless windows. As for the library, it was a bare skeleton. A good reference book was used for years and journals usually arrived after a couple of years’ delay.