Learning from the following favorite words：
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For millennia, commerce has flourished or failed in proportion to the ability of produces, purchasers, transporters and brokers to find common ground for trade- literally and figuratively. Customs rooted in the native soil of a culture traveled along with the goods that were traded. In time new commercial customs evolved, blending practices from many social orders, economic systems and faith traditions. In this way pre-modern global commerce supported a rich variety of business customs that met a variety of social needs
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Quote from <Rethinking Negotiation Teaching>