Richard Baxter, John Wesley (1817). “The saints everlasting rest: or, a treatise of the blessed state of the saints, in their enjoyment of God in glory”, p.86
David Livingstone, Horace Waller (2011). “The Last Journals of David Livingstone in Central Africa, from 1865 to His Death: Continued by a Narrative of His Last Moments and Sufferings, Obtained from His Faithful Servants, Chuma and Susi”, p.289, Cambridge University Press
Henry David Thoreau (2014). “Citizen Thoreau: Walden, Civil Disobedience, Life Without Principle, Slavery in Massachusetts, A Plea for Captain John Brown”, p.54, Graphic Arts Books