I'm pretty sure that's not a legitimate and authentic quotation. Apparently, no one has ever found an appearance of this quote prior to 1904.
“Amend the Constitution to say it should never be altered to interfere with slavery.” -—Abe Lincoln, December 24, 1860
Your butcher offered up the 13th Amendment to FOREEVER protect slavery.
I'm pretty sure that's not a legitimate and authentic quotation either. Among the problems with your claim that he offered it up is that Lincoln was not yet President and did not hold any political office at all in December 1860.
If you disagree and believe it to be authentic, then I welcome the identification of a source document.
To clarify my previous comment on the Grant quote, the exact phrasing used above hasn’t been found prior to 1904. The 1904 book in question repeats a differently-worded quote, which reportedly was printed in an 1868 smear book called the “Democratic Speaker’s Handbook.”
“Not too steady in his grasp of constitutional law, President Buchanan signed the joint resolution the day the Senate approved it: an unnecessary step, given the fact that Congressional power to propose amendments to the Constitution is not subject to presidential approval or veto. Two days later, Abraham Lincoln was inaugurated as the sixteenth president of the United States and the proposed amendment was largely forgotten, although two states, Ohio and Maryland, actually ratified it! An Illinois state constitutional convention that met in 1862 purported to ratify the amendment, but had no legal authority to do so. Interestingly, Lincoln alluded to the Corwin amendment in his First Inaugural Address (paragraph 29). Although he stopped short of endorsing it, he said, “holding such a provision to now be implied constitutional law, I have no objection to its being made express and irrevocable.” Those were clearly not the words of a wild-eyed abolitionist (as Lincoln’s detractors portrayed him), but of a practical politician trying to manage an unprecedented crisis.”
http://ghostamendment.com/