Only those whose hearts are filled with the love of God and who reveal that Christ has given them His grace to adorn their office work as missionaries for Him, should make application to engage in medical missionary work. Those who take up this line of missionary effort should look upon their work as a high and holy calling. This work is committed to them as a sacred trust; and wherever they may be, the Lord expects them to reveal the excellency of their mission.—Letter 186, 1903. MM 76.3