Roger Bacon Quotes

• There are four chief obstacles in grasping truth ... namely, submission to faulty and unworthy authority, influence of custom, popular prejudice, and the concealment of our own ignorance accompanied by an ostentatious display of our knowledge.

  Roger Bacon

  Ignorance, Prejudice, Four

  Roger Bacon (2016). “Opus Majus, Volumes 1 and 2”, p.4, University of Pennsylvania Press

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• Knowledge of languages is the doorway to wisdom.

  Roger Bacon

  Inspiración, Educación, Sabiduría

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• Reasoning draws a conclusion, but does not make the conclusion certain, unless the mind discovers it by the path of experience.

  Roger Bacon

  Mind, Doe, Path

  1267 Opus Majus (translated by Robert Belle Burke, 1928).

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• It is easier for a man to burn down his own house than to get rid of his prejudices.

  Roger Bacon

  Men, House, Prejudice

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• A little learning is a dangerous thing but none at all is fatal.

  Roger Bacon

  Ignorance, Littles, Dangerous

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• To ask the proper question is half of knowing.

  Roger Bacon

  Knowledge, Knowing, Words Of Wisdom

  "LIFE" Magazine, (p. 73), September 8, 1958.

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• Cease to be ruled by dogmas and authorities; look at the world!

  Roger Bacon

  Looks, World, Dogma

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• There are two modes of knowledge: through argument and through experience. Argument brings conclusions and compels us to concede them, but it does not cause certainty nor remove doubts that the mind may rest in truth, unless this is provided by experience.

  Roger Bacon

  Education, Two, Doubt

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• Mathematics is the gate and key to science.

  Roger Bacon

  Math, Keys, Gates

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• Neglect of mathematics work injury to all knowledge, since he who is ignorant of it cannot know the other sciences or things of this world. And what is worst, those who are thus ignorant are unable to perceive their own ignorance, and so do not seek a remedy.

  Roger Bacon

  Learning, Ignorance, Science

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• Los argumentos más sólidos no prueban nada mientras las conclusiones no sean verificadas por la experiencia. La ciencia experimental es la reina de las ciencias y la meta de toda especulación.

  Roger Bacon

  Queens, Science, Long

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• Atheists are like wild feral dogs wih no master. But Christians are like loving dogs with a giving and loving master. Domesticated dogs will love you always, but Feral wild dogs HAVE to be put down. they are a danger to us all.

  Roger Bacon

  Christian, Dog, Atheist

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• There are in fact four very significant stumbling blocks in the way of grasping the truth, which hinder every man however learned, and scarcely allow anyone to win a clear title to wisdom, namely, the example of weak and unworthy authority, longstanding custom, the feeling of the ignorant crowd, and the hiding of our own ignorance while making a display of our apparent knowledge.

  Roger Bacon

  Wisdom, Ignorance, Men

  "Teaching the pursuit of science". Book by John H. Woodburn and Ellsworth Scott Obourn, p. 70, 1965.

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• All sciences are connected; they lend each other material aid as parts of one great whole, each doing its own work, not for itself alone, but for the other parts; as the eye guides the body and the foot sustains it and leads it from place to place.

  Roger Bacon

  Eye, Science, Feet

  Roger Bacon, John Henry Bridges (2010). “The Opus Majus of Roger Bacon”, p.88, Cambridge University Press

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• Argument is conclusive, but it does not remove doubt.

  Roger Bacon

  Doubt, Doe, Argument

  "Memorable Quotations: Philosophers of Western Civilization". Book edited by Carol Dingle, p. 21, 2000.

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• The conquest of learning is achieved through the knowledge of languages.

  Roger Bacon

  Language, Language Learning, Conquest

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• Pues las cosas de este mundo no pueden conocerse sin el conocimiento de las matemáticas.

  Roger Bacon

  Knowledge, Math, World

  Roger Bacon (2016). “Opus Majus, Volumes 1 and 2”, p.128, University of Pennsylvania Press

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• A man is crazy who writes a secret in any other way than one which will conceal it from the vulgar.

  Roger Bacon

  Crazy, Writing, Men

  Quoted in Kahn, The Codebreakers (1996).

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• There are two modes of acquiring knowledge, namely by reasoning and experience. Reasoning draws a conclusion and makes us grant the conclusion, but does not make the conclusion certain, nor does it remove doubt so that the mind may rest on the intuition of truth, unless the mind discovers it by the path of experience.

  Roger Bacon

  Inspirational, Two, Doubt

  1267 Opus Majus (translated by Robert Belle Burke, 1928).

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• It is not necessarily impossible for human beings to fly, but it so happens that God did not give them the knowledge of how to do it. It follows, therefore, that anyone who claims that he can fly must have sought the aid of the devil. To attempt to fly is therefore sinful.

  Roger Bacon

  Giving, Devil, Impossible

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• Few have attained to consummate wisdom in the perfection of philosophy: Solomon attained to it, and Aristotle in relation to his times, and in a later age Avicenna, and in our own days the recently deceased Robert, Bishop of Lincoln, and Adam Marsh.

  Roger Bacon

  Philosophy, Perfection, Age

  "Opus Tertium" by Roger Bacon, (p. 70), (c. 1267).

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• First, by the figurations of art there be made instruments of navigation without men to row them, as great ships to brooke the sea, only with one man to steer them, and they shall sail far more swiftly than if they were full of men; also chariots that shall move with unspeakable force without any living creature to stir them. Likewise an instrument may be made to fly withall if one sits in the midst of the instrument, and do turn an engine, by which the wings, being artificially composed, may beat the air after the manner of a flying bird.

  Roger Bacon

  Art, Moving, Men

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• Toda ciencia requiere matemáticas. El conocimiento de las cosas matemáticas es casi innato en nosotros. Se trata de la más fácil de las ciencias, hecho evidente en la medida en que el cerebro de nadie la rechaza; pues los profanos y las personas absolutamente analfabetas saben contar y calcular.

  Roger Bacon

  People, Brain, Facts

  1267 OpusMajus, pt.4, ch.1 (translated by Robert Belle Burke, 1928).

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• All science requires mathematics.
  [Editors' summary of Bacon's idea, not Bacon's wording.]

  Roger Bacon

  Science, Editors, Ideas

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• Experimental science is the queen of knowledge.

  Roger Bacon

  Queens, Science, Experimental Science

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