Prof. Mann is the flesh and blood of Yad Sarah, a family member in the full sense of the word. A dedicated medical and research man, he is determined to spread Yad Sarah’s gospel of humane medicine. Professor Jonathan’s father, the late Professor Kalman Yaakov, was one of the pioneers of medicine in Israel; for many years, he headed Hadassah Hospital and led the construction of the hospital in Ein Kerem. He was also one of the first doctors to recognize Yad Sarah’s contribution to Israeli society. He gave Yad Sarah its first building in Jerusalem and later headed the presidency of Yad Sarah for many years. The son, Professor Jonathan, may he have a good life, proudly continues the legacy of his father. He established generations of dentists within the framework of Hadassah Hospital and the Hebrew University, where he served as dean of the Faculty of Dentistry as an expert in public health and as one who has led struggles for the promotion of health in Israel, and all the way, as one who has always stood by Yad Sarah; with the establishment of the geriatric dental clinics, the mobile dental clinics, the advanced medical systems for home hospitalization and more. One of the leaders in the health care system in Israel, and an active partner of Yad Sarah for decades.