“Marxism comprises many principles, but in the final analysis they can all be brought back to a single sentence: it is right to rebel.”
Original: (zh-CN) 马克思主义的道理千条万绪,归根结底就是一句话:“造反有理。
Source: Speech marking the 60th birthday of Stalin (20 December 1939), later revised as "It is right to rebel against reactionaries."
Help us to complete the source, original and additional information
Mao Zedong 181
Chairman of the Central Committee of the Communist Party of… 1893–1976Related quotes

The Chinese Novel (1938)
Context: The instinct which creates the arts is not the same as that which produces art. The creative instinct is, in its final analysis and in its simplest terms, an enormous extra vitality, a super-energy, born inexplicably in an individual, a vitality great beyond all the needs of his own living — an energy which no single life can consume. This energy consumes itself then in creating more life, in the form of music, painting, writing, or whatever is its most natural medium of expression. Nor can the individual keep himself from this process, because only by its full function is he relieved of the burden of this extra and peculiar energy — an energy at once physical and mental, so that all his senses are more alert and more profound than another man's, and all his brain more sensitive and quickened to that which his senses reveal to him in such abundance that actuality overflows into imagination. It is a process proceeding from within. It is the heightened activity of every cell of his being, which sweeps not only himself, but all human life about him, or in him, in his dreams, into the circle of its activity.

Source: "A synopsis of linguistic theory 1930-1955." 1957, p. 20

Speech (18 October 1967) http://www.cuba.cu/gobierno/discursos/1967/esp/f181067e.html

Nobel lecture (2001)
Context: The United Nations, whose membership comprises almost all the States in the world, is founded on the principle of the equal worth of every human being. It is the nearest thing we have to a representative institution that can address the interests of all states, and all peoples. Through this universal, indispensable instrument of human progress, States can serve the interests of their citizens by recognizing common interests and pursuing them in unity.

Source: Real Presences (1989), II: The Broken Contract, Ch. 4 (p. 82).

“Cultures are, in the final analysis, value-guided systems.”
Source: The systems view of the world (1996), p. 75.

Physics and Philosophy (1958)
Context: But the resemblance of the modern views to those of Plato and the Pythagoreans can be carried somewhat further. The elementary particles in Plato's Timaeus are finally not substance but mathematical forms. "All things are numbers" is a sentence attributed to Pythagoras. The only mathematical forms available at that time were such geometric forms as the regular solids or the triangles which form their surface. In modern quantum theory there can be no doubt that the elementary particles will finally also be mathematical forms but of a much more complicated nature.