Abraham Lincoln quote: “If slavery is right, all words, acts, laws, and constitutions against it, are themselves wrong, and should be silenced,…”

“"[C]onstitutional silence"... pervades all of constitutional law.”

Laurence Tribe (1941) American lawyer and law school professor

Soundings and Silences (2016)

“No law can be sacred to me but that of my nature. Good and bad are but names very readily transferable to that or this; the only right is what is after my constitution; the only wrong is what is against it.”

Ralph Waldo Emerson (1803–1882) American philosopher, essayist, and poet

“Douglas accepted Dred Scott, and in Dred Scott, the Chief Justice had said that the right to own slaves is expressly affirmed in the Constitution. And Lincoln said in the debates that it was implied but not expressly affirmed. The argument against any restriction on slavery was that any right expressly affirmed in the Constitution takes precedent over any law or regulation in any jurisdiction whatever. (Remember, the supremacy clause in Article VI of the Constitution says that this Constitution, and the laws and treaties made in pursuance thereof, are the supreme law of land—anything in any law or a constitution of any state to the contrary not withstanding.)”

Harry V. Jaffa (1918–2015) American historian and collegiate professor

2000s, The Real Abraham Lincoln: A Debate (2002), The Lincoln-Douglas Debates

“The Republican Party insists that slavery originated in force, by the stronger against the weaker party, and not by natural right; that it is maintained and upheld by oppression and wrong, and against the law of nature. This usurped ownership in man is not that kind of property which is recognized by the general consent of mankind.”

Elbridge G. Spaulding (1809–1897) American politician

Remarks on the Republican platform (1860)

“Most of the Constitution's Framers knew, and many said, that slavery was wrong.”

Thomas G. West (1945) American academic

Source: 2000s, Vindicating the Founders (2001), p. 14

“Constitutional rights should not be frittered away by arguments so technical and unsubstantial.”

Louis Brandeis (1856–1941) American Supreme Court Justice

Milwaukee Social Democratic Publishing Co. v. Burleson, 255 U.S. 407, 431 (1921).
Extra-judicial writings

“Douglas accepted Dred Scott, and in Dred Scott, the Chief Justice had said that the right to own slaves is expressly affirmed in the Constitution. And Lincoln said in the debates that it was implied but not expressly affirmed. The argument against any restriction on slavery was that any right expressly affirmed in the Constitution takes precedent over any law or regulation in any jurisdiction whatever.”

Harry V. Jaffa (1918–2015) American historian and collegiate professor

Remember, the supremacy clause in Article VI of the Constitution says that this Constitution, and the laws and treaties made in pursuance thereof, are the supreme law of land—anything in any law or a constitution of any state to the contrary not withstanding.
2000s, The Real Abraham Lincoln: A Debate (2002), The Lincoln-Douglas Debates