Citas de Cassius Jackson Keyser

• Absolute certainty is a privilege of uneducated minds and fanatics. - It is, for scientific folk, an unattainable ideal.

  Cassius Jackson Keyser

  Ignorance, Mind, Unattainable

  Cassius Jackson Keyser (1922). “Mathematical Philosophy: A Study of Fate and Freedom; Lectures for Educated Laymen”

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• El presente no está más exento de la burla del futuro de lo que lo ha estado el pasado.

  Cassius Jackson Keyser

  Past, Has Beens, Sneer

  Cassius Jackson Keyser (1927). “Mole Philosophy & Other Essays”

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• If people would stop objectifying abstractions (which they probably never will), or if they would stop objectifying the abstractions they make consciously (which they might learn to do), at least half the pseudo-questions befuddling the world today - as they have befuddled it since time immemorial - would vanish. And that would be a very, very great gain.

  Cassius Jackson Keyser

  People, Would Be, Half

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• [Humanizar la enseñanza de las matemáticas, hacer que la materia y el espíritu de las matemáticas influyan no sólo en ciertas facultades fragmentarias de la mente, sino en toda la mente, es el mayor desiderátum. Lo asumo, más allá de toda duda.

  Cassius Jackson Keyser

  Teaching, Science, Mind

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• La búsqueda de la excelencia es la vocación propia del hombre.

  Cassius Jackson Keyser

  Men, Excellence, Pursuit

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• Mathematics is, in many ways, the most precious response that the human spirit has made to the call of the infinite.

  Cassius Jackson Keyser

  Way, Spirit, Infinite

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• Mathematics, even in its present and most abstract state, is not detached from life. It is just the ideal handling of the problems of life.

  Cassius Jackson Keyser

  Education, Science, World

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• The validity of mathematical propositions is independent of the actual world-the world of existing subject-matters-is logically prior to it, and would remain unaffected were it to vanish from being. Mathematical propositions, if true, are eternal verities.

  Cassius Jackson Keyser

  Independent, World, Matter

  Cassius Jackson Keyser (1929). “The pastures of wonder: the realm of mathematics and the realm of science”

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• The next-most difficult thing in the world is to get perspective. The most difficult is to keep it.

  Cassius Jackson Keyser

  Perspective, World, Next

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• It is commonly, but erroneously, believed that it is easy to ask questions. A fool, it is said, can ask questions that a wise man cannot answer. The fact is that a wise man can answer many questions that a fool cannot ask.

  Cassius Jackson Keyser

  Wise, Men, Answers

  Cassius Jackson Keyser (1947). “Mathematics as a culture clue: and other essays”

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• If you ask ... the man in the street ... the human significance of mathematics, the answer of the world will be, that mathematics has given mankind a metrical and computatory art essential to the effective conduct of daily life, that mathematics admits of countless applications in engineering and the natural sciences, and finally that mathematics is a most excellent instrumentality for giving mental discipline... [A mathematician will add] that mathematics is the exact science, the science of exact thought or of rigorous thinking.

  Cassius Jackson Keyser

  Art, Science, Thinking

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