Samuel Taylor Coleridge, William Greenough Thayer Shedd (1854). “The Complete Works of Samuel Taylor Coleridge: With an Introductory Essay Upon His Philosophical and Theological Opinions”, p.446
Ralph Waldo Emerson (2004). “A Dream Too Wild: Emerson Meditations for Every Day of the Year”, p.7, Unitarian Universalist Association of Congregations