This case is similar to selling combs to monks. Eskimos live in the Arctic Circle all year round in the snowy Alaska, for the refrigerator as if it is not needed at all supplies, because they do not need refrigeration, then in the negotiation with them need to grasp their way of life, the refrigerator is a way of life, is a kind of aristocratic way of life, every aristocrat has more than one refrigerator in the house, different refrigerators to store different foods, due to the low temperature, food nutrition will be lost, and the temperature stored in the refrigerator is just enough to keep the most food! The food is stored in the refrigerator at just the right temperature to maintain the optimum temperature and humidity for this food so that the nutrition is at its best and is not lost. Nutrition means a lot to a person to maintain a strong body, so the Eskimos need the refrigerator even more.