They are born into different economic classes, and those classes have different ways of life, different opportunities, and, above all, different economic interests. They also have far different degrees of political influence. Ideas for human betterment that don’t take account of these differences can go spectacularly wrong.
How one did is nicely explained here:
http://www.nytimes.com/2009/05/05/opinion/05herbert.html?_r=1
If your economic life has been getting worse for years, I especially hope you’ll check this out.
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