Nanjing University and "unity, tension, seriousness and vividness" are all words collected from Mao's copybook, which are somewhat blunt.

Harbin Institute of Technology is a combination of Harbin Railway Bureau and industrial Daqing slogan.

Alexander is hairy, too, but the envelope says that Mao Zedong declined Alexander's nomination and asked for a reply, so it is scrawled, not the traditional Chinese characters used at that time.