All know that permitting the slaves of the south to spread into the west will not add one being to that unfortunate condition, that it will increase the happiness of those existing, and by spreading them over a larger surface, will dilute the evil everywhere, and facilitate the means of getting finally rid of it, an event more anxiously wished by those on whom it presses than by the noisy pretenders to exclusive humanity. In the meantime, it is a ladder for rivals climbing to power.
By: Thomas Jefferson
Year: 1820
This quote is from – Letter to the Marquis de Lafayette