Macbeth's tone is typically brazen. The reports he has heard can have no consequence, given the prophecies of the three apparitions of Act IV, Scene 1. Throughout this scene, any doubts he may have are quelled by his bold imperatives: "Bring me no more reports," "Fly, false thanes," and more. We see a man completely self-assured, a "confident tyrant," as Siward calls him in the subsequent scene. These angry words do much to assert his own manhood, in contrast to the cowardice he perceives in others — not only his servant, whom he calls "cream-faced" and "lily-livered," but also the rebel soldiers, whom he insultingly refers to as "epicures" (that is, self-indulgent and lazy).
In the dialogue with the servant, Macbeth orders him to "prick his cheeks" in order to "put colour" back in his face, an ironic reminder of the earlier color symbolism when Macbeth was accused by his wife of having a white heart, as opposed to her own red hands. Another imperative — "Give me my armour" — has to be repeated when Macbeth's armourer, Seyton, initially refuses to do so. Similarly, when the Doctor confesses that he has been unable to cure Lady Macbeth's madness, Macbeth mocks his ability, challenging him to "Throw physic (medicine) to the dogs."
