He had spoken against the Mexican war
Missouri Compromise was a plan agreed upon by the United States Congress in 1820 to settle the debate over slavery in the Louisiana Purchase area. The plan temporarily maintained the balance between free and slave states. ... Slavery was legal in the Territory of Missouri, and about 10,000 slaves lived there.
That was the Gettysburg address because the Gettysburg battle was very violent and hit hard toll on the north
It would be "Doing things for the common good" that best illustrates the concept of civic virtue, since this involves acting selflessly for the good of your community.