No Strings Attached For Iraq's suffering people, aid is aid -- Christian or otherwise By Franklin Graham Dr. David Livingstone, a 19th century Scottish medical missionary, is credited with taking modern medicine to Africa. During his estimated 29,000 miles of trekking throughout the continent, he saw the horrors of the slave trade and took action to abolish it. In India, Mother Teresa quietly lived out the mantra of St. Francis of Assisi, who said: "Preach the Gospel at all times and, when necessary, use words."