Source: The Man Who Never Missed (1985), Chapter 15 (p. 132)
“The principle that the end justifies the means is and remains the only rule of political ethics; anything else is just a vague chatter and melts away between one’s fingers.”
Source: Darkness at Noon
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Arthur Koestler 25
Hungarian-British author and journalist 1905–1983Related quotes

“A means can be justified only by its end. But the end in its turn needs to be justified”
Source: Their Morals and Ours (1938)
Context: A means can be justified only by its end. But the end in its turn needs to be justified, From the Marxist point of view, which expresses the historical interests of the proletariat, the end is justified if it leads to increasing the power of man over nature and to the abolition of the power of man over man.

Source: Rules for Radicals: A Practical Primer for Realistic Radicals (1971), p. 35

Source: Rules for Radicals: A Practical Primer for Realistic Radicals (1971), p. 34

“I think the highest and lowest points are the important ones. Anything else is just… in between.”

“The end may justify the means as long as there is something that justifies the end.”
Source: Their Morals and Ours
Source: Outsiders: Studies in the Sociology of Deviance (1963), p. 147.

UNESCO 1999
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