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And that's a lot of the reason why we care so much about our careers and indeed start caring so much about material goods. You know, we're often told that we live in very materialistic times, that we're all greedy people. I don't think we are particularly materialistic. I think we live in a society which has simply pegged certain emotional rewards to the acquisition of material goods. It's not the material goods we want;

The future of energy lies in balancing economic growth with environmental responsibility.

"Every book is a door to another world, a world that exists only in the imagination of the reader."

Information is the key to the functioning of markets, and the lack of it can lead to market failures.