Final answer:
FDR was positive in his second inaugural address about the future of the nation because he believed in American resilience, aimed to boost morale and used it as a political strategy to maintain public support for his programs.
Step-by-step explanation:
Franklin D. Roosevelt (FDR) expressed a strong sense of optimism in his second inaugural address for several reasons. First, he believed in the resilience of the American people and their ability to overcome the hardships of the Great Depression. Furthermore, his positive demeanor served to boost morale during difficult times, promoting a spirit of unity and collective action. Additionally, reflecting on his successful election and the subsequent support from the public, it was also likely a political strategy to gain public support for his New Deal programs.
Roosevelt's infectious optimism, contrasted sharply with the previous administration's gloom, played an essential role in restoring the nation's confidence. His compelling rhetoric and promise of change convinced Americans that a positive outcome was possible. Despite his own challenges, such as dealing with polio, Roosevelt's affability and conviction imbued the nation with a hope that under his leadership, the country would emerge stronger from the depression.