No man will ever be President of the United States who spells 'negro' with two gs.

Sir, there is no Christian nation, thus free to choose as we are, which would establish slavery.

It is an irrepressible conflict between opposing and enduring forces.

Revolutions never go backward.

There is not only no free state which would now establish it, but there is no slave state, which, if it had had the free alternative as we now have, would have founded slavery.

The two systems slave and free-labor are incompatible. They have never permanently existed together in one country, and they never can.

The proposition of an established classification of states as slave states and free states, as insisted on by some, and into northern and southern, as maintained by others, seems to me purely imaginary, and of course the supposed equilibrium of those classes a mere conceit.