"De Medicina" is a significant medical text written by the Roman physician Aulus Cornelius Celsus in the 1st century AD. It is part of a larger work called "De Arte" that covers various subjects, but the medical section is particularly notable for its systematic approach to health and disease. Celsus discusses topics such as diagnosis, treatment, and surgical procedures, emphasizing the importance of observation and experience in medicine. The text is divided into eight books, each addressing different aspects of medicine, including diet, pharmacology, and surgery. Celsus is recognized for his clear and concise writing style, which made complex medical concepts more accessible. "De Medicina" has influenced both ancient and modern medical practices, serving as a valuable resource for understanding early medical knowledge.