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Arthur Conan Doyle Quotes about Science

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It is a capital mistake to theorize before you have all the evidence. It biases the judgment.

It is a capital mistake to theorize before you have all the evidence. It biases the judgment.

Arthur Conan Doyle
Education, Mistake, Science
Study in Scarlet (1888) ch. 3

The grand thing is to be able to reason backwards.

Arthur Conan Doyle
Math, Science, Able
Sir Arthur Conan Doyle (2015). “Sherlock Holmes: The Novels: (Penguin Classics Deluxe Edition)”, p.93, Penguin

When we think how narrow and devious this path of nature is, how dimly we can trace it, for all our lamps of science, and how from the darkness which girds it round great and terrible possibilities loom ever shadowly upwards, it is a bold and a confident man who will put a limit to the strange by-oaths into which the human spirit may wander.

Arthur Conan Doyle
Science, Men, Thinking
Arthur Conan Doyle (2017). “ARTHUR CONAN DOYLE Ultimate Collection: 21 Novels, 188 Short Stories, 88 Poems & 7 Plays, Including Works on Spirituality, Historical Writings & Personal Memoirs (Illustrated): The Sherlock Holmes Series, The Professor Challenger Books, The Brigadier Gerard Stories, The White Company, The Great Shadow, Mystery of Cloomber, Beyond The City, A History of the Great War…”, p.5995, e-artnow

I had ... come to an entirely erroneous conclusion, which shows, my dear Watson, how dangerous it always is to reason from insufficient data.

Arthur Conan Doyle
Science, Data, Investing
Arthur Conan Doyle (2006). “The Hound of the Baskervilles: Another Adventure of Sherlock Holmes, with "The Adventure of the Speckled Band"”, p.236, Broadview Press

It is a capital mistake to theorize before one has data.

Arthur Conan Doyle
Mistake, Math, Science
"A Scandal in Bohemia" (1891)

Our ideas must be as broad as Nature if they are to interpret Nature.

Arthur Conan Doyle
Nature, Science, Ideas
1887 A Study in Scarlet, ch.7.

I never guess. It is a shocking habit destructive to the logical faculty.

Arthur Conan Doyle
Science, Literature, Logic
Arthur Conan Doyle (2016). “The Sign of the Four”, p.21, Arthur Conan Doyle

'There's no need for fiction in medicine,' remarks Foster... 'for the facts will always beat anything you fancy.'

Arthur Conan Doyle
Science, Medicine, Needs
Arthur Conan Doyle (2007). “Around the Red Lamp: Medical Life As It Used to Be”, p.86, Fireship Press

"I should have more faith," he said; "I ought to know by this time that when a fact appears opposed to a long train of deductions it invariably proves to be capable of bearing some other interpretation."

Arthur Conan Doyle
Faith, Knowledge, Science
"A Study in Scarlet". Book by Arthur Conan Doyle, 1887.

Detection is, or ought to be, an exact science, and should be treated in the same cold and unemotional manner. You have attempted to tinge it with romanticism, which produces much the same effect as if you worked a love-story or an elopement into the fifth proposition of Euclid.

Arthur Conan Doyle
Humorous, Sarcasm, Science
The Sign of the Four ch. 1 (1890)

It seems very strange ... that in the course of the world's history so obvious an improvement should never have been adopted. ... The next generation of Britishers would be the better for having had this extra hour of daylight in their childhood.

Arthur Conan Doyle
Science, History, Childhood

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