"Let us not be satisfied with mere crowds flocking to us for medical treatment. We have a higher vocation to fulfil. ... Our waiting-rooms may be full of patients, and all our beds be occupied, and yet these men and women will pass from under our care pretty much as they came to us, so far as higher things are concerned, unless we directly bestir ourselves for their spiritual good. They seek us, it is true, but for their bodies only; if we would win their souls, we must seek them."
— John Kenneth Mackenzie
Source: Quoted in Mary Isabella Bryson, John Kenneth Mackenzie, Medical Missionary to China (1891), pp. 209–210