"On the Happy Life". Essay by Seneca the Younger (58 AD); later published in Sir Edward Bulwer-Lytton "Caxtoniana: A Series of Essays on Life, Literature, and Manners", p. 174 (in the essay "The Sympathetic Temperment"), 1863.
Nathaniel Hawthorne, Sophia Peabody Hawthorne, Nicholas R. Lawrence, Marta L. Werner (2005). “Ordinary Mysteries: The Common Journal of Nathaniel and Sophia Hawthorne, 1842-1843”, p.7, American Philosophical Society