What is past is prologue

What is past is prologue

The phrase "What is past is prologue" is a famous line from William Shakespeare's play "The Tempest." It is spoken by the character Antonio in Act 2, Scene 1, as he tries to justify his past actions and manipulate the situation to his advantage. The phrase has since become a popular saying, often used to suggest that the events of the past set the stage for what is to come in the future.