Sophie's World

A 1991 novel by Jostein Gaarder in which Norwegian teenager Sophie Amundsen studies the history of philosophy through lessons intertwined with a mystery.

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Sophie Amundsen: The Norwegian teenager whose philosophical lessons and correspondence drive Sophie's World. Her lessons with Alberto Knox give the novel its route through philosophy.
Socratic method: A form of inquiry that tests ideas through questions, answers, and critical examination. Alberto uses questions to make Sophie examine philosophical claims rather than memorize them.
Jostein Gaarder: A Norwegian novelist and former philosophy teacher, best known for Sophie's World. His background as a teacher informed the novel's accessible lessons.
World Book Day: A UNESCO observance promoting reading, publishing, and copyright, held annually on April 23. Gaarder donated royalties from the novel to support the creation of this observance.
Alberto Knox: A philosophy teacher who guides Sophie through the history of Western thought. He delivers the lessons that shape Sophie's education and the novel's structure.
Western philosophy: The philosophical traditions that developed from ancient Greece and later spread across Europe and beyond. The lessons trace a selective history of this tradition from antiquity to modernity.
Norwegian literature: Literary writing produced in Norway, including works in Bokmål and Nynorsk. The novel originated in Norway and was first published in Norwegian.
Philosophy for children: An educational movement that develops philosophical inquiry and discussion among young people. The novel brought sustained philosophical inquiry to a young readership.
Hil Hilde Møller Knag: A teenager whose father sends her a philosophical manuscript that intertwines with Sophie's story. Her connection to Sophie turns the lessons into a mystery about authorship and reality.
Pre-Socratic philosophy: Early Greek philosophy that investigated nature and reality before Socrates. The opening lessons introduce the earliest thinkers in Alberto's historical survey.