China's first systematic academic work tracing the genesis, evolution, and transformation of ancient Chinese ethical thought. 中国首部系统整理和研究中国古代伦理思想发生、发展及其变迁的学术著作。 Authored by Cai Yuanpei, this groundbreaking study chronologically examines ethical doctrines from the pre-Qin era to the late Qing dynasty. It meticulously analyzes Confucian, Taoist, Mohist, and other schools of ethics, comprehensively revealing the development and shifts in moral concepts across dynasties. Through a modern scholarly lens, Cai conducts refined curation of traditional ethical frameworks-preserving their essence while imbuing them with contemporary relevance. Serving as a vital reference for Chinese ethical studies, this essential classic profoundly shapes the heritage and evolution of traditional morality, offering indispensable insights into China's ethical philosophy. 本书是蔡元培先生所作的中国首部系统梳理伦理思想演进的著作。该书以先秦至清末为时间脉络，详细阐述了儒家、道家、墨家等诸家伦理学说，全面展现了不同时期道德观念的发展与变迁。作者以现代学术视角，对传统伦理思想进行去粗取精的梳理与阐释，既保留了传统精髓又赋予其现代意义。这部著作为中国伦理文化研究提供了重要参考，对传统道德的传承与发展具有深远影响，是研究中国伦理思想不可或缺的经典之作。