'Three people walk together' is a classical Chinese idiom originating from the Analects of Confucius (Lunyu). Literally, 三 means 'three', 人 means 'person', and 行 means 'to walk' or 'to go'. Together, the phrase expresses the Confucian idea that learning and self-improvement occur naturally in everyday interaction — among any group of three people, at least one will have qualities worth emulating. It emphasizes humility, openness to learning from others regardless of status, and the value of peer-based growth.

This phrase is rarely used to describe literal walking; instead, it functions as a philosophical noun or set expression in reflective, educational, or moral contexts. It appears in essays, speeches, classroom discussions, and motivational writing — often to underscore mutual learning, mentorship, or lifelong curiosity. While rooted in ancient thought, it remains culturally resonant in modern Chinese education and interpersonal ethics.