More from Arthur Conan Doyle
- The Stark Munro Letters (1894)
- The Boer War (1902)
- The Hound of the Baskervilles (1902), Chapter 2In context
People/Arthur Conan Doyle/Quote

I never guess. It is a shocking habit,—destructive to the logical faculty.
The Sign of the Four (1890), Chapter I
Quote and source from Wikiquote, CC BY-SA 4.0