Plato's "Allegory of the Cave".

что было -- то и будет, и что делалось -- то и будет делаться, и нет ничего нового под Солнцем!
Екклесиаст

It amazing what people come up with over 2000 years ago. Following an excellent tip from my climbing partner, Morgan (thanks! the advice is greatly appreciated!), I read Plato's "Allegory of the Cave". It's one piece of deserving reading!

P.S. It was a required reading for a political science class.