William Shakespeare, Thomas Dolby (1872). “Dictionary of Shakespearian Quotations: Exhibiting the Most Forcible Passages, Illustrative of the Various Passions, Affections and Emotions of the Human Mind”, p.25
Robert Boyle, Edward B. Davis, Michael Hunter (1996). “Robert Boyle: A Free Enquiry Into the Vulgarly Received Notion of Nature”, p.137, Cambridge University Press