A house divided against itself cannot stand.

I do not expect the Union to be dissolved - I do not expect the house to fall - but I do expect it will cease to be divided. It will become all one thing, or all the other.

You can fool all the people some of the time, and some of the people all the time, but you cannot fool all the people all the time.

You cannot escape the responsibility of tomorrow by evading it today.

Truth is generally the best vindication against slander

I believe this government cannot endure permanently, half slave and half free.