Jeremy Bentham (1834). “Deontology: or, The science of morality: in which the harmony and co-incidence of duty and self-interest, virtue and felicity, prudence and benevolence, are explained and exemplified”, p.131
William Shakespeare, Edmond Malone, George Steevens, Samuel Johnson (1790). “The Plays and Poems of William Shakspeare: Romeo and Juliet. Hamlet. Othello”, p.327