However, the play is clearly far more than a piece of royal entertainment. It is also a fast-moving and dramatically satisfying piece of theatre. Macbeth's existential struggle between loyalty to his King and his "Vaulting ambition" is fascinating to watch, as his is struggle with Lady Macbeth, and her own terrifying refusal of her maternal role. The play shows an intensification of Shakespeare's interest in mothers and their effect upon ruling masculinity, and also contains some of the most memorable speeches in the entire canon, including Macbeth's reflections that ultimately life "is a tale/Told by an idiot, full of sound and fury,/Signifying nothing". --Jerry Brotton