Throw physic to the dogs, I'll none of it.
Act V, Scene 3 · Macbeth
Context
When the Doctor responds that Lady Macbeth must heal herself, Macbeth angrily rejects medicine entirely with a single dismissive line before immediately returning to his military preparations.
Analysis
The abrupt monosyllables of 'Throw physic to the dogs, I'll none of it' enact Macbeth's need to shut down the conversation the moment it suggests a problem he cannot solve by force. 'Physic' (medicine) gets literally thrown away in the syntax, tossed to the dogs as worthless, because it represents the kind of slow, internal work Macbeth refuses to do. His immediate pivot to demanding his armor shows him retreating into the only mode of action he still trusts—violence.
Essay Tip
Support a thesis that Macbeth's final scenes show him trapped in a cycle of rejecting anything that requires reflection—this quote demonstrates how he discards the Doctor's wisdom instantly because acknowledging psychological complexity would mean confronting what he's done.