Which of the following best describes Lincoln’s argument for national unity in the excerpt?

We cannot hope to flourish as a people if our nation remains fragmented by the corrosive issues of our time. In dividing our efforts over multiple, conflicting interests, we only weaken the bonds that unite us as one people. A house divided against itself cannot stand, and so I call on every citizen to commit themselves to the cause of unity. This unity is not achieved through the suppression of differences, but by recognizing and reconciling them for the common good. In confronting the divisions, be they economic, social, or moral, we secure a future where liberty and justice prevail for every man. Thus, let us bind our wounds together so that our collective strength may overcome any challenge that endangers our Union.

• Abraham Lincoln, Speech on National Unity, July 1859