Macbeth Quote Analysis

The Porter, explaining why he slept so late, tells Macduff that alcohol both provokes sexual desire and prevents sexual performance.

The balanced syntax—'it provokes… but it takes away'—enacts the contradiction it describes, using parallel structure to show two forces working against each other. This verbal pattern of something that 'makes and mars' at the same time becomes a miniature model for the whole play: ambition drives Macbeth forward and destroys him simultaneously. By embedding this logic in a joke about impotence, Shakespeare lets the Porter articulate the play's central paradox in a way that feels like drunken rambling rather than thematic statement.

Use this to argue that Shakespeare builds the play's structure into its language at every level—even a lowbrow joke contains the same self-defeating logic that governs Macbeth's ambition, suggesting the pattern is inescapable throughout the world of the play.