Mr. Micawber is a character from Charles Dickens' novel, David Copperfield. He is known for his optimistic outlook on life despite facing financial difficulties. Mr. Micawber often finds himself in debt but maintains a hopeful attitude, believing that something good will eventually happen. He is characterized by his memorable catchphrase, "Something will turn up," which reflects his belief in the possibility of better times ahead. Mr. Micawber serves as a representation of resilience and the struggle against adversity, making him a significant figure in the story and a reflection of Dickens' themes of hardship and hope.