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Ideas are the ultimate abundance commodity, which propagates at zero marginal cost. Once created, ideas want to spread far and wide, enriching everything they touch.
Source：Free: The Future of a Radical Price http://www.amazon.com/gp/product/1401322905?ie=UTF8&tag=a0b8a8-20&linkCode=as2&camp=1789&creative=9325&creativeASIN=1401322905
Andrew's email：andrewlo0623@gmail.com
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