„Mathematics is the gate and key of the sciences. … Neglect of mathematics works injury to all knowledge, since he who is ignorant of it cannot know the other sciences or the things of this world. And what is worse, men who are thus Ignorant are unable to perceive their own ignorance and so do not seek a remedy.“

—  Roger Bacon, livro Opus majus

cited in: Morris Kline (1969) Mathematics and the physical world. p. 1
Opus Majus, c. 1267

Última atualização 22 de Maio de 2020. História
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Roger Bacon4
1220 - 1292
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—  Richard Baxter English Puritan church leader, poet, and hymn-writer 1615 - 1691

Reported in Josiah Hotchkiss Gilbert, Dictionary of Burning Words of Brilliant Writers (1895), p. 36.

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—  Samuel R. Delany, Time Considered as a Helix of Semi-Precious Stones

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Contexto: If everything, everything were known, statistical estimates would be unnecessary. The science of probability gives mathematical expression to our ignorance, not to our wisdom.

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„Mathematics is the key and door to the sciences.“

—  Galileo Galilei Italian mathematician, physicist, philosopher and astronomer 1564 - 1642

As quoted in Building Fluency Through Practice and Performance (2008) by Timothy Rasinski and Lorraine Griffith, p. 64, but in fact a quotation by Roger Bacon: Et harum scientiarum porta et clavis est Mathematica, "And of these sciences the door and key is mathematics", from Bacon's Opus Majus (1267) https://books.google.co.uk/books?id=UfqcGd8NOFsC&pg=PA97&lpg=PA97&dq=%22porta+et+clavis%22+opus+majus&source=bl&ots=nGgt2Lhxqe&sig=88kIPB5EAKAKtm0APk6J5OrS1D0&hl=en&sa=X&ved=0ahUKEwiU36D2gIbLAhVBWBQKHSW9CKgQ6AEINDAE#v=onepage&q=%22porta%20et%20clavis%22%20opus%20majus&f=false.
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„Ignorance more frequently begets confidence than does knowledge: it is those who know little, not those who know much, who so positively assert that this or that problem will never be solved by science.“

—  Charles Darwin, livro A Descendência do Homem e Seleção em Relação ao Sexo

volume I, "Introduction", page 3 http://darwin-online.org.uk/content/frameset?pageseq=16&itemID=F937.1&viewtype=image
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Contexto: It has often and confidently been asserted, that man's origin can never be known: but ignorance more frequently begets confidence than does knowledge: it is those who know little, and not those who know much, who so positively assert that this or that problem will never be solved by science.

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„Science is the most real guide for civilisation, for life, for success in the world. To search for a guide other than science is absurdity, ignorance and heresy.“

—  Мустафа Кемаль Ататюрк Turkish army officer, revolutionary, and the first President of Turkey 1881 - 1938

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„The origin of all science is in the desire to know causes; and the origin of all false science and imposture is in the desire to accept false causes rather than none; or, which is the same thing, in the unwillingness to acknowledge our own ignorance.“

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Contexto: The world cannot utterly ignore men who lay down their lives for any cause. Men may write and agitate, they may scream never so shrilly about the wrongs of the world, but when they go forth to fight single-handed and to die for what they preach, they have at least earned the right to demand of society an inquiry.

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