"After the XX Congress, in an ultra-narrow circle of our closest friends and associates, we often discussed the problems of democratization of the country and society. We chose a simple – like a sledgehammer – method of propagating the "ideas" of late Lenin. A group of true, not imaginary reformers developed (of course, orally) the following plan: to strike with the authority of Lenin at Stalin, at Stalinism. And then, if successful, – to strike with Plekhanov and Social Democracy - at Lenin, and then – with liberalism and "moral socialism" – at revolutionarism in general... The Soviet totalitarian regime could be destroyed only through glasnost and totalitarian party discipline, while hiding behind the interests of improving socialism. [...] Looking back, I can proudly say that a clever, but very simple tactic – the mechanisms of totalitarianism against the system of totalitarianism – has worked."
January 1, 1970
https://en.wikiquote.org/wiki/Dissolution_of_the_Soviet_Union