Which lines in this excerpt from act V of Shakespeare's Macbeth tell the audience that Macbeth realizes his mistake and regrets his ambition? This push Will chair me ever or disseat me now. I have liv'd long enough: my way of life Is fall'n into the sear, the yellow leaf; And that which should accompany old age, As honour, love, obedience, troops of friends, I must not look to have; but, in their stead, Curses, not loud but deep, mouth-honour, breath, Which the poor heart would fain deny, and dare not. Seyton!—