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Arthur Conan Doyle — Portrait after a picture by Walter Benington (public domain), via Wikimedia Commons.

The quotations of

Arthur Conan Doyle

British writer and physician

1859–1930

34 quotes, most often on Thinking, Knowledge and Facts.

The more outré and grotesque an incident is the more carefully it deserves to be examined, and the very point which appears to complicate a case is, when duly considered and scientifically handled, the one which is most likely to elucidate it.
The Hound of the Baskervilles (1902), Chapter 15In context
- Facts
- Thinking
It is a capital mistake to theorize before you have all the evidence. It biases the judgment.
A Study in Scarlet (1887), Part I, Chapter IIIIn context
- Facts
- Thinking
When a fact appears to be opposed to a long train of deductions, it invariably proves to be capable of bearing some other interpretation.
A Study in Scarlet (1887), Part I, Chapter VIIIn context
- Facts
- Thinking
It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts.
The Adventures of Sherlock Holmes (1891–1892), A Scandal in BohemiaIn context
- Facts
- Thinking
There is nothing more deceptive than an obvious fact
The Adventures of Sherlock Holmes (1891–1892), The Boscombe Valley MysteryIn context
- Facts
- Truth & Lies

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