What is Lincoln's main idea in his first inaugural address

President Lincoln's First Inaugural Address focused on reassuring the Southern states that the president would not try to strip them of their slaves and that he would try to find a way to help them secure slavery if it would make them happy.

most people now work in jobs where they do one  kind  of work; they are carpenters, bankers, cooks, mechanics, and so forth. likewise, most  businesses produce  only certainkinds  of  goods  or  services, such as cars, tacos, or gardening  services. this feature of  production  is known as specialization.