„Our empirical criterion for a series of theories is that it should produce new facts. The idea of growth and the concept of empirical character are soldered into one.“

—  Imre Lakatos, p. 119.
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Imre Lakatos
matemático e filósofo húngaro 1922 - 1974
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„Our new economic approach is rooted in ideas which stress the importance of macro-economics, post neo-classical endogenous growth theory and the symbiotic relationships between growth and investment, and people and infrastructure.“

—  Gordon Brown British Labour Party politician 1951
Michael White, "The gift of tired tongues", The Guardian, 30 September 1994; Norman Macrae, "You've never had it so incoherent", Sunday Times, 2 October 1994. Speech at an economic seminar, Tuesday 27 September 1994.

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„I think that it is a relatively good approximation to truth — which is much too complicated to allow anything but approximations — that mathematical ideas originate in empirics.“

—  John Von Neumann Hungarian-American mathematician and polymath 1903 - 1957
Context: I think that it is a relatively good approximation to truth — which is much too complicated to allow anything but approximations — that mathematical ideas originate in empirics. But, once they are conceived, the subject begins to live a peculiar life of its own and is … governed by almost entirely aesthetical motivations. In other words, at a great distance from its empirical source, or after much "abstract" inbreeding, a mathematical subject is in danger of degeneration. Whenever this stage is reached the only remedy seems to me to be the rejuvenating return to the source: the reinjection of more or less directly empirical ideas. "The Mathematician", in The Works of the Mind (1947) edited by R. B. Heywood, University of Chicago Press, Chicago

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„String theory at its finest is, or should be, a new branch of geometry. ...I, myself, believe rather strongly that the proper setting for string theory will prove to be a suitable elaboration of the geometrical ideas upon which Einstein based general relativity.“

—  Edward Witten American theoretical physicist 1951
Context: String theory at its finest is, or should be, a new branch of geometry.... I, myself, believe rather strongly that the proper setting for string theory will prove to be a suitable elaboration of the geometrical ideas upon which Einstein based general relativity. "Edward Witten" interview, Superstrings: A Theory of Everything? (1992) ed. P.C.W. Davies, Julian Brown

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„The example of great and pure characters is the only thing that can produce fine ideas and noble deeds.“

—  Albert Einstein German-born physicist and founder of the theory of relativity 1879 - 1955
Context: I am absolutely convinced that no wealth in the world can help humanity forward, even in the hands of the most devoted worker in this cause. The example of great and pure characters is the only thing that can produce fine ideas and noble deeds. Money only appeals to selfishness and always tempts its owners irresistibly to abuse it. Can anyone imagine Moses, Jesus, or Gandhi armed with the money-bags of Carnegie?

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