“In the interest of scientific work, more and more formulations in the unified language of unified science are becoming increasingly precise. No term of unified science, however, is free from imprecision, since all terms are based on terms that are essential for protocol statements, whose imprecision must be immediately obvious to everyone.”
Source: 1930s, "Protocol Statements" (1932), p. 91
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Otto Neurath 23
austrian economist, philosopher and sociologist 1882–1945Related quotes

Initial statement of the Uncertainty principle in "Über den anschaulichen Inhalt der quantentheoretischen Kinematik und Mechanik" in Zeitschrift für Physik, 43 (1927)
Variant translation: The more precisely the position is determined, the less precisely the momentum is known in this instant, and vice versa.
As quoted in "The Uncertainty Principle" at the American Institute of Physics http://www.aip.org/history/heisenberg/p08.htm
Quoted from: Maharishi Mahesh Yogi's Main Message - from Victory Day, October 21, 2007 Maharishi Channel http://www.bienfaits-meditation.com/en/maharishi/videos/maharishi_main_message_2007

Source: The Province of Jurisprudence Determined (1832), p. 6
From Milton Babbitt, "The Structure and Function of Musical Theory", College Music Symposium, Vol. 5 (Fall 1965), pp. 49-60; reprinted in Perspectives on Contemporary Music Theory, ed. Benjamin Boretz and Edward T. Cone (New York: Norton, 1972), pp. 10-21, ISBN 0393005488, and in Milton Babbitt, The Collected Essays of Milton Babbitt, ed. Stephen Peles, with Stephen Dembski, Andrew Mead, and Joseph N. Straus (Princeton: Princeton University Press, 2003), pp. 191-201, ISBN 0691089663.

Cabe ir más lejos; cabe sospechar que no hay universo en el sentido orgánico, unificador, que tiene esa ambiciosa palabra. Si lo hay, falta conjeturar su propósito; falta conjeturar las palabras, las definiciones, las etimologías, las sinonimias, del secreto diccionario de Dios.
As translated by Lilia Graciela Vázquez
Other Inquisitions (1952), The Analytical Language of John Wilkins
Variant: We can go further; we suspect that there is no universe in the organic, unifying sense of that ambitious word. If there is, we must conjecture its purpose; we must conjecture the words, the definitions, the etymologies, the synonyms, from the secret dictionary of God.

in a review of William Herschel's A Treatise on Sound, Quarterly Review, Vol. 44, No. 88 (January-February 1831), p. 476 http://books.google.com/books?id=742veo7MzswC&printsec=titlepage#PPA476,M1.
also quoted by Brewster himself in his Treatise on Optics http://books.google.com/books?id=opYAAAAAMAAJ&printsec=frontcover#PPR4,M1 and by Dionysius Lardner as frontispiece or presentation of his works (see for example: Popular lectures on science and art http://books.google.com/books?id=uZ9LAAAAMAAJ&pg=PA3, Cabinet Cyclopaedia http://books.google.com/books?id=5T43oHhqyxUC&pg=RA1-PT7).
Context: It is not easy to devise a cure for such a state of things (the declining taste for science). The most obvious remedy is to provide the educated classes with a series of works on popular and practical science, freed from mathematical symbols and technical terms, written in simple and perspicuous language, and illustrated by facts and experiments which are level to the capacity of ordinary minds.

Hans Freudenthal (1978). Weeding and Sowing. Preface to a Science of Mathematical Education; As cited in: Ben Wilbrink (2013) " Hans Freudenthal Aantekeningen bij zijn publicaties http://www.benwilbrink.nl/literature/freudenthal.htm".

"Facing Up to the Problem of Consciousness," 1995

Frankfurt Book Fair speech (2003)