Thomas Aquinas vs Zhu Xi

Thomas Aquinas joined the Dominican Order against his family's wishes. His decision, which led to his being kidnapped by his brothers for a year, set him on a path of mendicant preaching and academic study, shaping his intellectual career.

Thomas Aquinas studied under Albertus Magnus in Cologne, where he was introduced to Aristotelian philosophy. This mentorship profoundly influenced Aquinas's approach to integrating faith and reason, leading to his later synthesis of Aristotle with Christian thought.

Thomas Aquinas completed his masterwork, *Summa Theologica*, a comprehensive synthesis of Aristotelian philosophy and Christian theology. The work systematically addressed questions of God, ethics, and salvation, becoming a cornerstone of Catholic doctrine and medieval scholasticism.

Zhu Xi synthesized Confucian thought with Buddhist and Daoist metaphysics, creating a rationalist system centered on principle (li) and material force (qi). He argued that moral cultivation involves investigating things to understand principle. This became the orthodox interpretation of Confucianism.

Zhu Xi compiled the Four Books (Great Learning, Doctrine of the Mean, Analects, Mencius) as the core curriculum for Confucian education. He wrote commentaries emphasizing moral self-cultivation and principle (li). These texts became the basis for civil service examinations until 1905.

Zhu Xi's teachings were banned as 'false learning' by the Song court under Emperor Ningzong. His official posts were stripped, and his followers were persecuted. The ban lasted until 1202, but Zhu Xi's philosophy later became state orthodoxy under the Yuan dynasty.