Respuesta :
From the excerpt, the phrase that indicated that Hamilton believes other governments are diligently observing the formation of government in the United States is this: “the safety and welfare of the parts of which it is composed, the fate of an empire in many respects the most interesting in the world”
The quote, "... the safety and welfare of the parts of which it is composed, the fate of an empire in many respects the most interesting in the world..." suggests that Hamilton thinks other governments are closely watching the formation of the government of the United States.