Such were the words of one of the greatest explorers of Africa in the nineteenth century. Determination was the keynote of his character even as a young boy. At the age of ten he was at work in a cotton factory in Scotland: with his first week's wages he bought a Latin grammar. Fourteen hours of daily work left little time for reading, but he educated himself, till at nineteen he was resolved to be a medical missionary. "In the glow of love which Christianity inspires, I resolved to devote my life to the alleviation of human misery." He was accepted for service by the London Missionary Society, and in the year 1840 he sailed for South Africa. After a voyage of three months he arrived at Cape Town and made his way in a slow ox-waggon seven hundred miles to Kuruman, a small mission station in the heart of Bechuanaland where Dr. Moffat had laboured for twenty years. He did well, and two years later he was sent north to form another mission station at Mabotsa (Transvaal). Having married Moffat's daughter Mary, he worked in these parts till June 1849, when, with his wife and three children, he started with oxen and waggon for a journey northwards. Across the great Kalahari Desert moved the exploring family, till they came to the river called Zouga, which, said the natives, led to a large lake named Lake Ngami. In native canoes, Livingstone and his little family ascended this beautifully wooded river, "resembling the river Clyde above Glasgow," till on 1st August 1849, Lake Ngami appeared, "and for the first time," says Livingstone, "this fine sheet of water was beheld by Europeans." The lake was two thousand eight hundred feet above the sea, but the climate was terribly unhealthy. The children grew feverish, and mosquitoes made life a misery to them, while the tsetse fly made further exploration for the moment impossible. So the family journeyed back to headquarters for a time. But Livingstone was unsatisfied, and once more in 1851 we find him starting again with wife and children to seek the great river Zambesi, known to exist in central Africa, though the Portuguese maps represented it as rising far to the east of Livingstone's discovery. [Illustration: LIVINGSTONE, WITH HIS WIFE AND FAMILY, AT THE DISCOVERY OF LAKE NGAMI. From Livingstone's _Missionary Travels_.] "It was the end of June 1851," he tells us, "that we were rewarded by the discovery of the Zambesi in the centre of the continent. This was an important point, for that river was not previously known to exist there at all. As we were the very first white men the inhabitants had ever seen, we were visited by prodigious numbers of Makololo in garments of blue, green, and red baize." Livingstone wanted to know more of this unknown river, but he now decided that exploring with a wife and family was not only perilous, but difficult, so he returned to the coast, put them on a homeward-bound ship for England, and returned to central Africa to continue his work of exploration alone.