„None of the Marxist concepts (literally – not a single one!) matches the logical rules of scientific concepts.“

—  Aleksandr Zinovyev, On the Social State of Marxism (1978)
Aleksandr Zinovyev photo
Aleksandr Zinovyev5
scrittore russo 1922 - 2006

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Alfred Jules Ayer photo

„I see philosophy as a fairly abstract activity, as concerned mainly with the analysis of criticism and concepts, and of course most usefully of scientific concepts.“

—  Alfred Jules Ayer English philosopher 1910 - 1989
As quoted in Profile of Sir Alfred Ayer (June 1971) by Euro-Television, quoted in A.J. Ayer: A Life (1999), p. 2.

Sun Myung Moon photo
Friedrich Schleiermacher photo

„But the imparting of religion is not to be sought in books, like that of intellectual conceptions and scientific knowledge.“

—  Friedrich Schleiermacher German theologian, philosopher, and biblical scholar 1768 - 1834
Context: But the imparting of religion is not to be sought in books, like that of intellectual conceptions and scientific knowledge. The pure impression of the original product is too far destroyed in this medium, which, in the same way that dark-colored objects absorb the greatest proportion of the rays of light, swallows up everything belonging to the pious emotions of the heart, which cannot be embraced in the insufficient symbols from which it is intended again to proceed. Nay, in the written communications of religious feeling, everything needs a double and triple representation; for that which originally represented, must be represented in its turn; and yet the effect on the whole man, in its complete unity, can only be imperfectly set forth by continued and varied reflections. It is only when religion is driven out from the society of the living, that it must conceal its manifold life under the dead letter. Neither can this intercourse of heart with heart, on the deepest feelings of humanity, be carried on in common conversation. Friedrich Schleiermacher, On The Social Element in Religion (1799), The German Classics of the Nineteenth and Twentieth Centuries, Volume 5 http://www.gutenberg.org/ebooks/12888

Adolf Hitler photo

„The main plank in the National Socialist program is to abolish the liberalistic concept of the individual and the Marxist concept of humanity and to substitute therefore the folk community, rooted in the soil and bound together by the bond of its common blood.“

—  Adolf Hitler Führer and Reich Chancellor of Germany, Leader of the Nazi Party 1889 - 1945
1930s, On National Socialism and World Relations http://research.calvin.edu/german-propaganda-archive/hitler1.htm, speech in the German Reichstag (January 30, 1937). German translation published by H. Müller & Sohn in Berlin.

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Ernst Mach photo

„I see the expression of… economy clearly in the gradual reduction of the statical laws of machines to a single one, viz., the principle of virtual work: in the replacement of Kepler's laws by Newton's single law… and in the [subsequent] reduction, simplification and clarification of the laws of dynamics. I see clearly the biological-economical adaptation of ideas, which takes place by the principles of continuity (permanence) and of adequate definition and splits the concept 'heat' into the two concepts of 'temperature' and 'quantity of heat'; and I see how the concept 'quantity of heat' leads on to 'latent heat', and to the concepts of 'energy' and 'entropy.“

—  Ernst Mach Austrian physicist and university educator 1838 - 1916
20th century, Mach (1910) "Die Leitgedanken meiner naturwissenschaftlichcn Erkennenislehre und ihr Aufnahme durch die Zeitgenossen", Physikalische Zeitschrift. 1, 1910, 599-606 Eng. trans. as "The Guiding Principles of my Scientific Theory of Knowledge and its Reception by my Contemporaries", in S. Toulmin ed., Physical Reality, New York : Harper, 1970. pp.28-43. Cited in: K. Mulligan & B. Smith (1988) " Mach and Ehrenfels: Foundations of Gestalt Theory http://ontology.buffalo.edu/smith/articles/mach/mach.pdf"

„An intuitionist conception of justice is, one might say, but half a conception.“

—  John Rawls, libro Una teoria della giustizia
A Theory of Justice (1971; 1975; 1999), Chapter I, Section 8, pg. 41

Benjamin N. Cardozo photo
Charles Sanders Peirce photo

„Three conceptions are perpetually turning up at every point in every theory of logic, and in the most rounded systems they occur in connection with one another.“

—  Charles Sanders Peirce American philosopher, logician, mathematician, and scientist 1839 - 1914
The Architecture of Theories (1891), Context: Three conceptions are perpetually turning up at every point in every theory of logic, and in the most rounded systems they occur in connection with one another. They are conceptions so very broad and consequently indefinite that they are hard to seize and may be easily overlooked. I call them the conceptions of First, Second, Third. First is the conception of being or existing independent of anything else. Second is the conception of being relative to, the conception of reaction with, something else. Third is the conception of mediation, whereby a first and second are brought into relation.

Herbert A. Simon photo
Rajiv Malhotra photo
Freeman Dyson photo

„The right way to ask the question is: How does the concept of a point fit into the logical structure of Euclid's geometry? …It cannot be answered by a definition.“

—  Freeman Dyson, libro Infinite in All Directions
Infinite in All Directions (1988), Context: Euclid... gave his famous definition of a point: "A point is that which has no parts, or which has no magnitude." …A point has no existence by itself. It exists only as a part of the pattern of relationships which constitute the geometry of Euclid. This is what one means when one says that a point is a mathematical abstraction. The question, What is a point? has no satisfactory answer. Euclid's definition certainly does not answer it. The right way to ask the question is: How does the concept of a point fit into the logical structure of Euclid's geometry?... It cannot be answered by a definition. Ch. 2 : Butterflies and Superstrings, p. 17

Jacob Bronowski photo

„Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Etiam egestas wisi a erat. Morbi imperdiet, mauris ac auctor dictum.“

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