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Quote by Friedrich Engels

“...in pure mathematics the mind deal only with its own creations and imaginations. The concepts of number and form have not been derived from any source other than the world of reality. The ten fingers on which men learned to count, that is, to carry out the first arithmetical operation, may be anything else, but they are certainly not only objects that can be counted, but also the ability to exclude all properties of the objects considered other than their number-and this ability is the product of a long historical evolution based on experience. Like the idea of number, so the idea of form is derived exclusively from the external world, and does not arise in the mind as a product of pure thought.”

Quote by Friedrich Engels

Book:Anti-Dühring: Herr Eugen Dühring’s Revolution in Science
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Anti-Dühring: Herr Eugen Dühring’s Revolution in Science

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Friedrich Engels
Friedrich Engels

Friedrich Engels was a German philosopher, politician, economist, and revolutionary, co-founder of communist theory with Karl Marx. He was born on November 28, 1820, and died on August 5, 1895. more

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“The separation between the Man of Labour and the Instruments of Labout once established, such a state of things will maintain itself and reproduce itself upon a constantly increasing scale, until a new and fundamental revolution in the mode of production should again overturn it, and restore the original union in a new historical form.”

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“The class struggle, which is always present to a historian influenced by Marx, is a fight for the crude and material things without which no refined and spiritual things could exist. Nevertheless, it is not in the form of the spoils which fall to the victor that the latter make their presence felt in the class struggle. They manifest themselves in this struggle as courage, humor, cunning, and fortitude. They have retroactive force and will constantly call in question every victory, past and present, of the rulers. As flowers turn toward the sun, by dint of a secret heliotropism the past strives to turn toward that sun which is rising in the sky of history. A historical materialist must be aware of this most inconspicuous of all transformations.”

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