元代 · 朱震亨创立 · 金元四大家之一
Yuan dynasty · Founded by Zhu Zhenheng · One of the Four Great Masters of Jin-Yuan
朱震亨（1281–1358）提出「阳常有余，阴常不足」的著名命题，认为人体阴精易亏而相火易妄动，治疗上重视滋阴降火。他综合前代河间、易水等学说，又有独创，形成以滋阴为核心的丹溪学派，对明清医学影响深远。
Zhu Zhenheng (1281–1358) advanced the well-known thesis that “yang is often in excess, yin often insufficient.” He held that yin essence is easily depleted and ministerial fire readily becomes hyperactive, and therefore emphasised nourishing yin and reducing fire. Integrating earlier Hejian and Yishui ideas while adding his own innovations, he founded the yin-nourishing Danxi school, which exerted deep influence on Ming and Qing medicine.
朱震亨（字彦修，号丹溪）。其学说经弟子与私淑者传播，成为南方医学的重要传统。
Zhu Zhenheng (style Yanxiu, hao Danxi). His teachings were transmitted by disciples and admirers and became an important tradition in southern medicine.