He is considered the father of functionalism in international relations, which is classified under liberal institutionalism.

codified rules, policies, and norms that are considered official, originating from state laws, government and organizations.

explains that human action and behavior are products of choice.

There are thoughts, memories, emotions, and feelings that are hidden from a person’s conscious mind, which without them knowing, affect the way they think, feel, and acts.

instincts and basic urges

The systematic study of politics

The scientific study of language and its structure