'The undiscover'd country': Which famous work features this quote about death?

The famous lines 'But that the dread of something after death—The undiscover'd country, from whose bourn No traveller returns—puzzles the will, And makes us rather bear those ills we have Than fly to others that we know not of?' are from William Shakespeare's tragedy, Hamlet. This powerful soliloquy, spoken by Prince Hamlet in Act 3, Scene 1, delves into the universal fear of the unknown that lies beyond death.