When Dr. David Livingstone was working in Africa, a group of friends wrote him: "We would like to send other men to you. Have you found a good road into your area yet?" According to a member of his family, Dr. Livingstone sent this message in reply: "If you have men who will only come if they know there is a good road, I don't want them. I want men who will come if there is no road at all."
