“A house divided against itself cannot stand. I believe this government cannot endure permanently half slave and half free. I do not expect the Union to be dissolved; I do not expect the house to fall; but I do expect that it will cease to be divided. It will become all the one thing or all the other. Either the opponents of slavery will arrest the further spread of it and place it where the public mind shall rest in the belief that it is in course of ultimate extinction, or its advocates will push it forward until it shall become alike lawful in all the states, old as well as new, north as well as south.” – Abraham Lincoln,  Address to the Republican Convention on June 16, 1858

“If all do not join now to save the good old ship of the Union this voyage nobody will have a chance to pilot her on another voyage.” – Abraham Lincoln in a speech in Cleveland, Ohio on February 15, 1861

Lincoln’s Gettysburg Address

Abraham Lincoln

Four score and seven years ago our fathers brought forth on this continent, a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal.

Now we are engaged in a great civil war, testing whether that nation, or any nation so conceived and so dedicated, can long endure. We are met on a great battle-field of that war. We have come to dedicate a portion of that field, as a final resting place for those who here gave their lives that that nation might live. It is altogether fitting and proper that we should do this.