“Nought’s had, all’s spent, When our desire is got without content; ’Tis safer to be that which we destroy, Than by destruction dwell in doubtful joy.”

That was the secret of their misery; Macbeth and Lady Macbeth had got their heart’s desire, and in the unworthy getting of it they found it brought them no content or peace of mind. Sick at heart, weary, dissatisfied, it would have been hard to find a sadder pair that day in Scotland than the King and Queen in their royal robes, on the eve of their grand state banquet.

But true to her old undaunted spirit, even in the midst of her own depression, Lady Macbeth tried to rouse her husband from his despondent gloom.

“How now, my lord?” she said. “Why do you keep alone, making companions of sorriest fancies? Things without all remedy should be without regard; what’s done is done.”

“We have but scotched the snake, not killed it,” returned Macbeth, whose mind was always brooding on the possible dangers ahead. All day he was thinking over the past, or plotting fresh wickedness to secure his own safety, and by night he was haunted by the most terrible dreams. In this constant state of unrest he could even think with envy of the quiet repose of the man he had killed. “Better be with the dead, whom we to gain our peace have sent to peace, than to live on in the restless torture of the mind. Duncan is in his grave; after life’s fitful fever he sleeps well. Treason has done its worst; nor steel, nor poison, malice domestic, foreign levy—nothing can touch him further.”

“Come, my gentle lord,” said Lady Macbeth, “smooth your rugged looks; be bright and jovial among your guests to-night.”

“So I shall, love, and so I pray be you,” said Macbeth. “Oh, my mind is full of scorpions, dear wife! You know that Banquo and his son Fleance live.”

“But they will not live for ever,” said Lady Macbeth.

“There’s comfort yet; they can be assailed,” said Macbeth; and then, in dark, mysterious words, he gave his wife to understand that a deed of dreadful note was to be done that night, though he refused to tell her more precisely what it was. “Be innocent of the knowledge, dearest chuck, till thou applaud the deed,” he ended. “Thou marvellest at my words, but hold thee still: things bad begun make themselves strong by evil.”