Which work features the famous line “All the world's a stage"?

The line “All the world's a stage” is a well-known quote from William Shakespeare's play "As You Like It." This line is part of a monologue delivered by the character Jaques in Act II, Scene VII. In this speech, Jaques reflects on the nature of life and human existence, likening the world to a theatrical stage where people play roles throughout different stages of their lives. This metaphor emphasizes the transient nature of life and the performative aspects of social interactions. The metaphor resonates deeply with themes of identity and the passage of time, making it one of the most quoted lines in English literature.

The other works mentioned contain significant themes and quotes but do not have this specific line. "Hamlet," while filled with existential dialogue, focuses on themes of revenge, madness, and mortality. "Macbeth" explores ambition and guilt, framing a narrative around power and the supernatural. "The Tempest" also presents themes of power and forgiveness in a different context. Therefore, the correct identification of "As You Like It" as the source of this famous line highlights its central exploration of life’s stages through a theatrical lens.