“However extensively Lenin was prepared to creatively develop the Marxism he inherited, he was not prepared to ‘skip stages’ in achieving socialism. Socialism required, as prerequisite, the modernization and industrial development of its economic base. To create the missing material prerequisites, Lenin was prepared to fall back on a centrally supervised market-influenced program of state capitalism.”

On Development (1964)
Context: The inflow of capital from the developed countries is the prerequisite for the establishment of economic dependence. This inflow takes various forms: loans granted on onerous terms; investments that place a given country in the power of the investors; almost total technological subordination of the dependent country to the developed country; control of a country's foreign trade by the big international monopolies; and in extreme cases, the use of force as an economic weapon in support of the other forms of exploitation.

Source: A History of Economic Thought (1939), Chapter II, Commercial Capitalism and its Theory, p. 65

Meeting the Challenges of Electronic Business” in Muscat, Oman, October 9, 2000.

Source: Marxism, Fascism & Totalitarianism: Chapters in the Intellectual History of Radicalism, (2008), p. 293

citation needed
On Modernity

Speech (2 December 1971) http://www.cuba.cu/gobierno/discursos/1971/esp/f021271e.html

Source: Anarcho-Syndicalism (1938), Ch. 1 "Anarchism: Its Aims and Purposes"
Context: Power operates only destructively, bent always on forcing every manifestation of life into the straitjacket of its laws. Its intellectual form of expression is dead dogma, its physical form brute force. And this unintelligence of its objectives sets its stamp on its supporters also and renders them stupid and brutal, even when they were originally endowed with the best of talents. One who is constantly striving to force everything into a mechanical order at last becomes a machine himself and loses all human feeling.
It was from the understanding of this that modern Anarchism was born and now draws its moral force. Only freedom can inspire men to great things and bring about social and political transformations. The art of ruling men has never been the art of educating men and inspiring them to a new shaping of their lives. Dreary compulsion has at its command only lifeless drill, which smothers any vital initiative at its birth and can bring forth only subjects, not free men. Freedom is the very essence of life, the impelling force in all intellectual and social development, the creator of every new outlook for the future of mankind. The liberation of man from economic exploitation and from intellectual and political oppression, which finds its finest expression in the world-philosophy of Anarchism, is the first prerequisite for the evolution of a higher social culture and a new humanity.

Source: Longing for the Harmonies: Themes and Variations from Modern Physics (1987), Ch.25 A Suggested Unity

Speech (7 June 1972) http://www.cuba.cu/gobierno/discursos/1972/esp/f070672e.html