Hahnemann, << HAH nuh muhn, >> Samuel (1755-1843), a German physician, founded the homeopathic method of treating disease. He believed that a drug which produces symptoms in a healthy person will cure those symptoms in a sick person (see Homeopathy ). Hahnemann published his major work, the Organon der rationellen Heilkunst (Principles of Rational Medicine), in 1810. The book contains his chief ideas: to let like cure like, that medicines become more potent as they are diluted and shaken, and that only one remedy should be given at a time. Hahnemann was born on April 10, 1755, in Meissen, Germany. His full name was Christian Friedrich Samuel Hahnemann. He practiced in many towns in Germany—especially in Leipzig—and later in Paris. Hahnemann died in Paris on July 2, 1843.