Answer:
actually we need the chapter to solve it
This is a matter of opinion. Although, optimism is important because we live in a world of negativity and pessimism. Optimism is good to see/show because it brings "light into a world of darkness". A lot of people need to see and experience optimism to lift their spirits and feel good about life.
What are the examples of the rhetorical devices?
During her last term of office, the President was always having to berate Congress for obstructing his proposed legislation and other things.
