Federalist Papers 5C

The most sanguine advocates for three or four confederacies cannot reasonably suppose that they would long remain exactly on an equal footing in point of strength, even if it was possible to form them so at first; but, admitting that to be practicable, yet what human contrivance can secure the continuance of such equality? Independent of those local circumstances which tend to beget and increase power in one part and to impede its progress in another, we must advert to the effects of that superior policy and good management which would probably distinguish the government of one above the rest, and by which their relative equality in strength and consideration would be destroyed. For it cannot be presumed that the same degree of sound policy, prudence, and foresight would uniformly be observed by each of these confederacies for a long succession of years.

Whenever, and from whatever causes, it might happen, and happen it would, that any one of these nations or confederacies should rise on the scale of political importance much above the degree of her neighbors, that moment would those neighbors behold her with envy and with fear. Both those passions would lead them to countenance, if not to promote, whatever might promise to diminish her importance; and would also restrain them from measures calculated to advance or even to secure her prosperity. Much time would not be necessary to enable her to discern these unfriendly dispositions. She would soon begin, not only to lose confidence in her neighbors, but also to feel a disposition equally unfavorable to them. Distrust naturally creates distrust, and by nothing is good-will and kind conduct more speedily changed than by invidious jealousies and uncandid imputations, whether expressed or implied.