Cosmopolitanism can refer to a global perspective or world citizen perspective, as well as an alcoholic drink. It involves social bonds between people across communities and societies. In Kant's political theory, cosmopolitan law involved a right to hospitality. Linguistics is the scientific study of language, including its structure, sounds, words, sentences and meaning. Its branches include sociolinguistics, psycholinguistics, computational linguistics and others. Linguistics has practical applications like language translation and education, and provides insights into human behavior. Anthropology is the broad study of human biology, culture, societies, languages and material remains. It aims to understand what defines humans and how we evolved