“Fascism is the stage reached after communism has proved an illusion. And it has been proven as much of an illusion in Stalinist Russia as it proven an illusion in pre-Hitler Germany. Communism in anything but name was abandoned in Russia when the Five-Year Plan was substituted for the New Economic Policy (NEP) after Lenin’s death.”

Source: 1930s- 1950s, The End of Economic Man (1939), pp. 245-246

The attribution to Shaw comes from Leadership Skills for Managers (2000) by Marlene Caroselli, p. 71. But this quote seems more likely to come from William H. Whyte. The Biggest Problem in Communication Is the Illusion That It Has Taken Place, Quote Investigator, 2014-08-31, 2015-11-09 http://quoteinvestigator.com/2014/08/31/illusion/,
Misattributed

Quoted in Mathematical Mysteries : The Beauty and Magic of Numbers (1999) by Calvin C. Clawson, p. 258

Wake Up To Your Life. (2002) pg. 264. (Topic: Awareness)

Unmasking the False Religion of Evolution (1996)

Vorhin ist eine Abgeordnete der Kommunistischen Partei in ihrer Rede für die Abtreibung des keimenden Lebens eingetreten. … In Rußland besteht seit zehn Jahren die Sowjetherrschaft. … Wo ist nach diesen zehn Jahren das vielgepriesene Paradies geblieben? Wo ist das verheißene Glück? Besteht vielleicht das Glück darin, daß in Rußland die Möglichkeit der Abtreibung zum Gesetz erhoben wurde?
02/22/1929, speech in the Bavarian regional parliament ("Kampf dem Weltfeind", Stürmer publishing house, Nuremberg, 1938)

"Nature Is My God" - interview with Fred Matser in Resurgence No. 184 (September-October 1997) http://www.resurgence.org/resurgence/184/gorbachev.htm
Context: We have retreated from the perennial values. I don't think that we need any new values. The most important thing is to try to revive the universally known values from which we have retreated.
As a young man, I really took to heart the Communist ideals. A young soul certainly cannot reject things like justice and equality. These were the goals proclaimed by the Communists. But in reality that terrible Communist experiment brought about repression of human dignity. Violence was used in order to impose that model on society. In the name of Communism we abandoned basic human values. So when I came to power in Russia I started to restore those values; values of "openness" and freedom.

Architects of Peace (2000)
Context: Unlike the small community, where every person lives in the illusion of having the same ideals, beliefs, and values as everyone else, in the larger context of plural communities — be it in country, continent, or globe — we live in the illusion of absolute difference. So, fearing the possibility that the interaction will change us, we magnify the threat involved in engaging with that which differs from us. Change is stressful, and costly, because it requires learning to navigate the unfamiliar. In the end, you cannot work with anyone who is different, and problems that could be resolved if we allowed everyone to contribute the best of themselves begin to look intractable.

As quoted in Famous Actors and Actresses on the American Stage (1975) by William C. Young, p. 885
Context: Acting is illusion, as much illusion as magic is — and not so much a matter of being real. I mean, I would probably shock Lee Strasberg.