Final answer:
In his inaugural address, Lincoln emphasizes similarities between the two sides and warns against laying blame using the better angels of our nature.
Step-by-step explanation:
In his inaugural address, President Abraham Lincoln emphasized the similarities between the two sides of the American Civil War in order to promote reconciliation and unity. He warned against laying blame by appealing to a rhetorical device known as the better angels of our nature. This phrase suggests that both sides have the capacity for goodness and kindness, and that by tapping into these virtues, they can overcome their differences and heal the nation.