* "Thus Isabella stands for sainted purity, Angelo for Pharisaical righteousness, the Duke for a psychologically sound and enlightened critic." (Wilson)
* "The Duke, like Jesus, is a prophet of a new order of ethics," (Wilson)
* “Hail virgin, if you be” - Lucio parodying Luke’s Annunciation (Watson)
* “What if, for example, the Duke doesn’t represent the monarch, but rather God himself?” (Parvini)