Final answer:
Machiavelli's primary purpose is to offer strategies on how a ruler can maintain control over newly acquired territories, emphasizing the viability of installing a friendly oligarchy. His secondary purpose is to educate rulers on maintaining power, which he conveys by outlining pragmatic governance approaches that may contrast with more democratic or idealistic political theories.
Step-by-step explanation:
The primary purpose of the passage from Niccolò Machiavelli's The Prince is to discuss strategies for maintaining control over states that have been annexed or won over. Machiavelli's main argument is that a prince can manage a newly acquired free state through one of three approaches: total destruction, ruling directly, or establishing a friendly oligarchy. The secondary purpose seems to be to educate rulers on the practical politics of governance, particularly the subtleties of control and the preservation of power in the face of liberty-loving subjects.
Machiavelli achieves his secondary purpose by outlining the advantages and sustainability of a ruling structure that works in concert with existing local institutions but is ultimately loyal to the prince. This aligns with his broader philosophy of political pragmatism and the maintenance of authority, contrasting with the more idealistic views posited by philosophers like John Locke, or the political contract theory that stipulates governments derive their authority from the consent of the governed, which is an enduring principle in democratic societies.