Despite having left, Maxwell never ceased to be concerned about Formosa. He toured and lectured about medical care in Taiwan, described the importance of establishing health care facilities in central Taiwan, and was an active fundraiser in the cause.
離開台灣的馬雅各仍未停止對台灣的關懷，他經常四處演講關於台灣的醫療事工，及中台灣建立醫館的重要性，並積極尋求經費。