Thomas a Kempis Quotes about Earth

Thomas a Kempis (2013). “The Imitation of Christ; Or, the Ecclesiastical Music”, p.194, Cambridge University Press
St. Augustine, Dr. Howard Taylor, Mrs. Howard Taylor, Apostolic Fathers, J. Oswald Sanders (2010). “Moody Classics Complete Set: Includes 19 Classics of the Faith in a Single Volume”, p.1556, Moody Publishers
"Imitation of Christ", Book I, Chapter III. 6, as quoted in Hoyt's New Cyclopedia Of Practical Quotations, p. 313-14, 1922.