Book

Our Knowledge of the External World

by Bertrand Russell

500 words

Bertrand Russell's "Our Knowledge of the External World" argues that our knowledge of the external world is constructed from sense-data and logical inference, moving beyond direct acquaintance to what can be inferred. The book establishes that we can know about the existence and properties of physical objects even if we never directly perceive them, by treating them as logical constructions out of sense-data.

This work, considered culturally important and part of the knowledge base of civilization, aims to provide a foundation for understanding how we gain knowledge beyond immediate sensory experience. It offers a historical perspective on philosophical inquiry into the nature of reality and our access to it.

Key concepts

  • Sense-dataRaw sensory information obtained from perception.
  • Logical constructionsEntities or concepts that can be defined in terms of other, more basic entities.
  • Knowledge of the external worldThe philosophical problem of how we can be certain about the existence and nature of the world outside our own minds.

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