View full lesson: http://ed.ted.com/lessons/plato-s-allegory-of-the-cave-alex-gendler Twenty four hundred years ago, Plato, one of history's most famous thinkers, said life is like being...
========== What is reality, knowledge,
the meaning of life?Big topics you might tackle figurativelyexplaining existence as a journey
down a road or across an ocean,a climb, a war, a book, a thread, a game,
a window of opportunity,or an all-too-short-lived
flicker of flame.2,400 years ago,one of history's famous thinkers said
life is like being chained up in a cave,forced to watch shadows
flitting across a stone wall.Pretty cheery, right?That's actually what Plato suggested
in his Allegory of the Cave,found in Book VII of "The Republic,"in which the Greek philosopher
envisioned the ideal societyby examining concepts
like justice, truth and beauty.In the allegory, a group of prisoners
have been confined in a cavern since birth,with no knowledge of ...