There are no words to express all that Alfonso Masi Elizalde (1932-2003) meant for Homeopathy. He brought us a deeper understanding of ourselves and the true extent of human illness, beckoning us to the possibility of intervening, with the homeopathic medicine, in its chronic course and almost inexorably to a death in agony. Masi has taught us that a death in ataraxia is possible, that is, without suffering. Masi Elizalde was the son of a great homeopathic doctor and learned from his father that the drugs had a "spirit" and that should be the aim when studying the Materia Medica. He had his homeopathic training at the Escuela Argentina de Homoeopathia of Tomas Pablo Paschero, which broke up in 1981 after a long process of discussion of their doctrinal disagreements with the Escuela, creating the Institute of Altos Estudios Homoepathicos James Tyler Kent, along with other dissidents. From then on, he formed several study groups in Argentina, Brazil (São Paulo and Rio de Janeiro) and Europe, including France, Italy and Russia. This process lasted from 1981 to 2003, during which time he developed with his students, particularly in France and Rio de Janeiro, an extensive material, although it has left very little written material documenting his work, for he said that his doctrinal views were not yet finalized.