Inconsistencies of opinion, arising from changes of circumstances, are often justifiable.

..if the Northern states refuse, willfully and deliberately, to carry into effect that part of the Constitution which respects the restoration of fugitive slaves, and Congress provide no remedy, the South would no longer be bound to observe the compact. A bargain can not be broken on one side, and still bind the other side.

The Constitution was made to guard the people against the dangers of good intentions

We may be tossed upon an ocean where we can see no land - nor, perhaps, the sun or stars. But there is a chart and a compass for us to study, to consult, and to obey. That chart is the Constitution.

I shall enter on no encomium upon Massachusetts; she needs none. There she is. Behold her, and judge for yourselves. There is her history; the world knows it by heart. The past, at least, is secure. There is Boston and Concord and Lexington and Bunker Hill; and there they will remain forever.

On the light of Liberty you saw arise the light of Peace, like "another morn," "Risen on mid-noon;" and the sky on which you closed your eye was cloudless.

Lastly, our ancestors established their system of government on morality and religious sentiment. Moral habits, they believed, cannot safely be trusted on any other foundation than religious principle, nor any government be secure which is not supported by moral habits.... Whatever makes men good Christians, makes them good citizens.