When people couldn't find any help for their medical problems elsewhere, they turned to Maxwell. Maxwell's medical practice was undoubtedly of immense benefit to his missionary work. Presbyterian elder Huang Mao-ching points out: "It was only by the concrete experience of lives being saved and illnesses cured that suspicion and prejudice against Christianity could be alleviated. Most of the early converts accepted Christianity because of the medical care."
長老教會黃茂卿指出：「唯有解救人的生命和解除病痛等實際經驗，最容易消除人們對基督教的反感和排斥，初期信徒大多數是因醫療而接受福音的。」