What is the standard definition of knowledge in philosophy?
Knowledge is often defined as justified true belief. A person must believe something, it must be true, and they must have good reasons for holding that belief.
Short answers, pulled from the story.
Knowledge is often defined as justified true belief. A person must believe something, it must be true, and they must have good reasons for holding that belief.
In 1963, epistemologist Edmund Gettier published a paper that challenged this standard definition. He presented thought experiments showing cases where people had beliefs that were both true and justified yet still did not count as knowledge.
Bertrand Russell first introduced this concept arguing it is more basic than propositional knowledge. To understand any proposition one must be acquainted with its constituents.
Plato argued souls already possess knowledge needing only recollection to access it again. Descartes proposed innate knowledge present within every human mind.
Radical skepticism holds humans lack any form of knowledge claiming it is impossible altogether. The dream argument suggests perceptual experience provides unreliable information since dreaming mimics waking life.
Major civilizations rose around 3000 BCE in Mesopotamia Egypt India China marking invention writing era. Writing significantly increased stable knowledge stored shared without limited imperfect human memory.