Final answer:
Lincoln should reassure the South about not interfering with slavery and emphasize Unity and majority rule, while delivering a clear message to calm fears and prevent secession. His communication must be precise to avoid misrepresentation by southern papers.
Step-by-step explanation:
As an advisor to Abraham Lincoln prior to the election of 1860, I would recommend addressing the question of slavery with clarity and reassurance, while affirming the Union's permanence. Mr. Lincoln, your position has been clear about not interfering with slavery where it already exists. Nonetheless, it is crucial to communicate this stance in a manner that disarms fear, calms the southern populace, and discourages secession.
It would be wise to assure Southerners that you respect their rights within the Union and to emphasize the importance of Unity and majority rule. You may reiterate, as you did in your address, that secession is neither legally tenable nor desirable. Additionally, expressing a plea for reconciliation, as you eloquently did, stating 'We are not enemies, but friends', will reinforce the message of political solidarity against division.
Furthermore, we must strive to maintain an even-tempered public discourse to reduce the chances of your words being distorted by Southern papers, which could exacerbate tensions and increase the likelihood of misrepresentation.