text: On 10 January, the work was re-issued to the delegates and sent to select units of the People's Liberation Army who received their advance copies for educating troops as well as for their comments. In May 1964, the PLA General Political Department, the chief political organ under Central Military Commission, revised Quotations, adding a half title page with the slogan "Workers of the world, unite!" () in bold red letters, and endorsement leaves written by Lin Biao, Mao's chosen successor, that included three lines from the diary of revolutionary soldier Lei Feng who is considered a hero in China. This version was issued "for internal use" to the military leaders. Following discussions that expanded the book twice more—finally closing on 33 topics and 427 quotations by Mao—the commission began publishing the definitive version in May 1965.
  At the end of 1965, the Central Committee of the Chinese Communist Party officially approved the book for publication by the People's Publishing House and for distribution within China by the Xinhua Bookstore.
  The Ministry of Culture held special study meetings to develop a production and distribution plan. It sought assurances that the book would receive publishing priority and that there would be sufficient paper, ink, and printing presses available. The goal was for "ninety-nine percent (of the population of China to) read Chairman Mao's book", according to a catalogue of publication records of the People's Publishing House. Provinces, municipalities, and autonomous regions across China were ordered to build hundreds of new printing houses to publish the Quotations during the second half of 1966, which pushed the limits of the Chinese printing industry.