Policarpo Quaresma is the main character in the novel "O Guarani," written by Brazilian author Aluísio Azevedo. He is depicted as a patriotic and idealistic man who deeply loves his country, Brazil. Quaresma's strong beliefs often lead him to clash with societal norms and expectations, showcasing his commitment to his ideals. The story follows Quaresma's struggles as he attempts to promote his vision of a better Brazil, often facing ridicule and opposition. His character represents the challenges of pursuing one's dreams in a world that may not share the same values, highlighting themes of nationalism and individualism.