Arthur Conan Doyle — "It is a capital mistake to theorize before one has data."
It is a capital mistake to theorize before one has data.
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More from Arthur Conan Doyle
"We are all connected, in ways we do not understand."
"I have no doubt that there are other planets inhabited by intelligent beings."
"The love of books is among the choicest gifts of the gods."
"The public is an excellent detective in its way."
"War is a necessary evil, and sometimes a cleansing fire."