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Thomas Cogswell Upham (1844). “Principles of the Interior Or Hidden Life: Designed Particularly for the Consideration of Those who are Seeking Assurance of Faith and Perfect Love”, p.283
Swami Vivekananda (1926). “The Complete Works of the Swami Vivekananda, Comprising All His Lectures, Addresses and Discourses Delivered in Europe, America and India: All His Writings in Prose and Poetry, Together with Translations of Those Written in Bengali and Sanskrit; Reports of His Interviews and His Replies to the Various Addresses of Welcome; His Sayings and Epistles,--private and Public--original and Translated; with an Index; Carefully Revised & Edited”
John William Gibson, William Henry Crogman, Booker T. Washington, Fannie Barrier Williams (1902). “Progress of a race: or, The remarkable advancement of the American Negro from the bondage of slavery, ignorance and poverty to the freedom of citizenship, intelligence, affluence, honor and trust”