Complex sentence: Madison previously wrote at length regarding the differences between a democracy and the republic that the Federalists propose in Federalist 10, therefore, in this essay, he cuts it short by simply defining the two government forms and refers the readers to "preceding papers".
Split into simpler sentences: Madison previously wrote at length regarding the differences between a democracy and the republic that the Federalists propose in Federalist 10. Therefore, in this essay, he consolidates his argument by simply defining the two government forms, referring the readers to "preceding papers".