"Tribes And Trust | Joel Kotkin
www.joelkotkin.com/content/00265-tribes-and-trust - View by Ixquick Proxy - Highlight
Jul 23, 2010 ... Only Tribes held together by a group feeling can survive in a desert. --Ibn Khaldun, 14th century Arab historian.…"
"Schumpeter: The power of tribes | The Economist
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Jan 28, 2012 ... Joel Kotkin, a geographer, suggests another frame of reference. In “The ... “Only tribes held together…"