What are the sources and main features of American political thought?

The main sources are Locke's view of natural rights, Rousseau's theory of social contract, Montesquieu's theory of separation of powers, Grotius' theory of international law, Pufendorf's theory of natural law and Hume's rational criticism.

Features: strong practicality, less abstract theoretical argumentation; With the theme of American independence and the establishment of a federal Republic; Equal opportunity and the pursuit of happiness have become the important contents of natural rights; The immediate goal is to establish a balanced federal government.