南北方在观念上确实存在着差异，否则何以有经济发达程度之区别 ?“南方多广告，北方多口号”就是一例。东西部亦如此。我们选登此文，意在引起人们的深刻反思。文中的观点比较尖锐，是否准确，可以发表不同意见，但刺激一下北方人特别是西北人的神经，实属必要 ! Differences in concept exist between North and South, or why there are differences in the degree of economic development? “Southern advertising, the northern slogan” is one example. The same thing is true. We selected this article, intended to arouse people’s deep reflection. The article’s point of view is sharp, accurate, you can express different opinions, but to stimulate the nerves of northerners, especially Northwest people, it is necessary!