Promising is the very air o' th' time; it opens the eyes of expectation. Performance is ever duller for his act; and, but in the plainer and simpler kind of people, the deed of saying is quite out of use. To promise is most courtly and fashionable; performance is a kind of will or testament which argues a great sickness in his judgment that makes it.

The Pictorial Edition of the Works of Shakspere: Tragedies. Poems (ed. 1839)