“What is our ideology? If l were asked whether our revolution is Communist, I would define it as Marxist. Our revolution has discovered by its methods the paths that Marx pointed out.”

Source: "How to Be a Good Communist - 4. The Unity of Theoretical Study and Ideological Self-Cultivation" https://www.marxists.org/reference/archive/liu-shaoqi/1939/how-to-be/ch04.htm (July 1939)

Speech at Labour Party conference (1 October 1963), quoted in Labour Party Annual Conference Report, 1963, pp. 139-140. Usually quoted as "the white heat of the technological revolution".
Leader of the Opposition

Source: Red Horizons: Chronicles of a Communist Spy Chief, p. 47

On Literature, Revolution, Entropy and Other Matters (1923)
Context: Ask point blank: What is revolution?
Some people will answer, paraphrasing Louis XIV: We are the revolution. Others will answer by the calendar, naming the month and the day. Still others will give you an ABC answer. But if we are to go on from the ABC to syllables, the answer will be this:
Two dead, dark stars collide with an inaudible, deafening crash and light a new star: this is revolution. A molecule breaks away from its orbit and, bursting into a neighboring atomic universe, gives birth to a new chemical element: this is revolution. Lobachevsky cracks the walls of the millennia old Euclidean world with a single book, opening a path to innumerable non-Euclidean spaces: this is revolution.
Revolution is everywhere, in everything. It is infinite. There is no final revolution, no final number. The social revolution is only one of an infinite number of numbers: the law of revolution is not a social law, but an immeasurably greater one. It is a cosmic, universal law — like the laws of the conservation of energy and of the dissipation of energy (entropy).<!-- Some day, an exact formula for the law of revolution will be established. And in this formula, nations, classes, stars — and books — will be expressed as numerical quantities.

How Civilizations Fall

Refering to the French Revolution
1850s, Third Annual Message to Congress (1852)
Context: In less than ten years her Government was changed from a republic to an empire, and finally, after shedding rivers of blood, foreign powers restored her exiled dynasty and exhausted Europe sought peace and repose in the unquestioned ascendency of monarchical principles. Let us learn wisdom from her example. Let us remember that revolutions do not always establish freedom. Our own free institutions were not the offspring of our Revolution. They existed before. They were planted in the free charters of self-government under which the English colonies grew up, and our Revolution only freed us from the dominion of a foreign power whose government was at variance with those institutions. But European nations have had no such training for self-government, and every effort to establish it by bloody revolutions has been, and must, without that preparation, continue to be a failure. Liberty, unregulated by law, degenerates into anarchy, which soon becomes the most horrid of all despotisms. Our policy is wisely to govern ourselves, and thereby to set such an example of national justice, prosperity, and true glory, as shall teach to all nations the blessings of self-government, and the unparalleled enterprise and success of a free people.

Listen, Marxist!

Speech on November 14, 1933 as quoted in Under the Axe of Fascism, Gaetano Salvemini, London, UK, Victor Gollancz Ltd. (1936) p. 131
1930s

(2011) ( From RT. com http://rt.com/news/immortal-technique-wall-street-revolution-747/}
Interviews