stylistic:style_transfer, linguistic:paraphrasing
Vision for Africa

Though Livingstone had responded to Gützlaff's call for missionaries to China, the looming First Opium War made the LMS directors cautious about sending recruits there. When he asked to extend his probationary training at Ongar, Cecil told him of their wish that he should be employed in the West Indies "in preference to South Africa". On 2 July 1839 he wrote to the LMS directors that the West Indies was by then well served by doctors, and he had always been attracted to other parts of the world rather than a settled pastorate. With LMS agreement, he continued to get theological tuition from Cecil until the end of the year, then resumed medical studies.

On beginning his clinical training in January 1840, he returned to Mrs. Sewell's missionary boarding house in Aldersgate, where he had stayed previously when in London. Others staying there were visited occasionally by the missionary Robert Moffat, who was then in England with his family to publicise the work of his LMS mission at Kuruman in South Africa. Livingstone questioned him repeatedly about Africa, and as Moffat later recalled; "By and by he asked me whether I thought he would do for Africa. I said I believed he would, if he would not go to an old station, but would advance to unoccupied ground, specifying the vast plain to the north, where I had sometimes seen, in the morning sun, the smoke of a thousand villages, where no missionary had ever been."

He was excited by Moffat's vision of expanding missionary work to the north of Bechuanaland, and by the hotly debated topic of Christianity and commerce. The LMS missionary John Philip, after discussion with the abolitionist Fowell Buxton, published Researches in South Africa in 1828, proposing that Christianity would always bring "civilisation" including free trade and free labour. This argument was reinforced for Livingstone when he attended the Exeter Hall meeting of 1 June 1840 where Buxton powerfully made the case that the African slave trade would be ended if chiefs, instead of having to sell slaves, could obtain desired European goods through "legitimate trade", its effect augmented by Christian missions preaching the gospel and introducing school education.