Logos

Logos (UK: , US: ; Ancient Greek: λόγος, romanized: lógos, lit. 'word, discourse, or reason') is a term used in Western philosophy, psychology and rhetoric, as well as religion (notably Christianity), that most broadly means reason, logic, order, or understanding. Among its connotations is that of a rational form of discourse that relies on inductive and deductive reasoning. Aristotle first systematized the usage of the word, making it one of the three principles of rhetoric alongside ethos and pathos.

Extends: [Ancient Greek logic](https://wikipedia.org.ai/Ancient Greek logic), [Christianity and Hellenistic philosophy](https://wikipedia.org.ai/Christianity and Hellenistic philosophy), [Conceptions of God](https://wikipedia.org.ai/Conceptions of God), [Concepts in ancient Greek epistemology](https://wikipedia.org.ai/Concepts in ancient Greek epistemology), [Concepts in ancient Greek metaphysics](https://wikipedia.org.ai/Concepts in ancient Greek metaphysics)