Cato’s Letters, or Essays on Liberty, Civil and Religious, and Other Important Subjects. In Four Volumes. (London: Witkins, Woodward, Walthoe, and Peele, 1737). http://oll.libertyfund.org/titles/1735,
A facsimile of the 1737 edition. Almost a generation before Washington, Henry, and Jefferson were even born, two Englishmen, concealing their identities with the honored ancient name of Cato, wrote newspaper articles condemning tyranny and advancing principles of liberty that immensely influenced American colonists.
The text is in the public domain.