“Being a bourgeoisie in a colonial and semi-colonial country and oppressed by imperialism, the Chinese national bourgeoisie retains a certain revolutionary quality at certain periods and to a certain degree--even in the era of imperialism--in its opposition to the foreign imperialists and the domestic governments of bureaucrats and warlords (instances of opposition to the latter can be found in the periods of the Revolution of 1911 and the Northern Expedition), and it may ally itself with the proletariat and the petty bourgeoisie against such enemies as it is ready to oppose. In this respect the Chinese bourgeoisie differs from the bourgeoisie of old tsarist Russia. Since tsarist Russia was a military-feudal imperialism which carried on aggression against other countries, the Russian bourgeoisie was entirely lacking in revolutionary quality. There, the task of the proletariat was to oppose the bourgeoisie, not to unite with it. But China's national bourgeoisie has a revolutionary quality at certain periods and to a certain degree, because China is a colonial and semi-colonial country which is a victim of aggression. Here, the task of the proletariat is to form a united front with the national bourgeoisie against imperialism and the bureaucrat and warlord governments without overlooking its revolutionary quality.”

CH 10, The Lenin Anthology
"Left-Wing" Communism: An Infantile Disorder (1920)

On New Democracy (1940)
Original: (zh-CN) 这种新民主主义共和国，一方面和旧形式的、欧美式的、资产阶级专政的、资本主义的共和国相区别，那是旧民主主义的共和国，那种共和国已经过时了；另一方面，也和苏联式的、无产阶级专政的、社会主义的共和国相区别，那种社会主义的共和国已经在苏联兴盛起来，并且还要在各资本主义国家建立起来，无疑将成为一切工业先进国家的国家构成和政权构成的统治形式；但是那种共和国，在一定的历史时期中，还不适用于殖民地半殖民地国家的革命。因此，一切殖民地半殖民地国家的革命，在一定历史时期中所采取的国家形式，只能是第三种形式，这就是所谓新民主主义共和国。这是一定历史时期的形式，因而是过渡的形式，但是不可移易的必要的形式。

The Foundations of Leninism

Internationalism and Nationalism (1952)
Source: "1.The Bourgeois-Nationalist Concept of the Nation" https://www.marxists.org/reference/archive/liu-shaoqi/1952/internationalism_nationalism/ch01.htm

Opening address, Fiji Week celebrations, 7 October 2005.

"Resolution on the Antiwar Congress of the London Bureau" (July 1936)

Source: The Permanent Revolution (1929), Ch. 10

Cuba as Vanguard (1961)
Context: We, politely referred to as "underdeveloped," in truth are colonial, semi-colonial or dependent countries. We are countries whose economies have been distorted by imperialism, which has abnormally developed those branches of industry or agriculture needed to complement its complex economy. “Underdevelopment,” or distorted development, brings a dangerous specialization in raw materials, inherent in which is the threat of hunger for all our peoples. We, the “underdeveloped,” are also those with the single crop, the single product, the single market. A single product whose uncertain sale depends on a single market imposing and fixing conditions. That is the great formula for imperialist economic domination.