The Federalist Papers · Federalist No. 37 · paragraph 15

Nor could it have been the large and small States only, which would marshal themselves in opposition to each other on various points. Other combinations, resulting from a difference of local position and policy, must have created additional difficulties. As every State may be divided into different districts, and its citizens into different classes, which give birth to contending interests and local jealousies, so the different parts of the United States are distinguished from each other by a variety of circumstances, which produce a like effect on a larger scale. And although this variety of interests, for reasons sufficiently explained in a former paper, may have a salutary influence on the administration of the government when formed, yet every one must be sensible of the contrary influence, which must have been experienced in the task of forming it.

Publius · Alexander Hamilton, John Jay, James Madison · 1787–1788
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