Why, this is very midsummer madness! — William Shakespeare

Shakespeare, William. "Twelfth Night." The Norton Shakespeare, edited by Stephen Greenblatt, et al., 3rd ed., W. W. Norton & Company, 2015, act 3, sc. 4.

Shakespeare, William. Twelfth Night, Or What You Will. 1602, Middle Temple Hall, London, England, UK, act 3, sc. 4.