Why does the united states have a representative democracy (republic) instead of a direct democracy as it's form of government?

John locke, an enlightenment-era philosopher, influenced the american movement for independence. locke believed that all people were entitled to natural rights. which quotation from the preamble to the declaration of independence refers to natural rights?

Does (flavius) josephus believe the romans were merciful when they conquered people? how does he try to persuade the reader to support his belief?

On a production possibility curve, data points that fall outside of the curve represent what