"When great evils happen, I am in the habit of looking out for what good may arise from them as consolations to us, and Providence has in fact so established the order of things, as that most evils are the means of producing some good. The yellow fever will discourage the growth of great cities in our nation, and I view great cities as pestilential to the morals, the health and the liberties of man. True, they nouish some of the elegant arts, but the useful ones can thrive elsewhere, and less perfection in the others, with more health, virtue and freedom, would be my choice." Thomas Jefferson (Monticello) to Dr. Benjamin Rush, September 23, 1800, Lipscomb and Bergh, vol. 10, p. 173.