When you have eliminated the impossible, whatever remains, however improbable, must be the truth. The Sign of Four
“What scholars came, what did they find! Like candles they shed light on the world. Which one broke through this darkness? They told a tale and fell asleep.” Samarkand
Loyalty gives traitors opportunity. Oedipus
Not until the beginning of the 20th century did Europe's urban populations finally become self-sustaining: before then, constant immigration of healthy peasants from the countryside was necessary to make up for the constant deaths of city dwellers from crowd diseases. Guns, Germs And Steel
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