Andrew Johnson actually said...

"The great difference between the two races in physical, mental, and moral characteristics will prevent an amalgamation or fusion of them together in one homogeneous mass."

"On the contrary, candor compels me to declare that at this time there is no Union as our fathers understood the term, and as they meant it to be understood by us."

"The Union and the Constitution are inseparable."

"How far the duty of the President 'to preserve, protect, and defend the Constitution' requires him to go in opposing an unconstitutional act of Congress is a very serious and important question."