Henry David Thoreau (2014). “Citizen Thoreau: Walden, Civil Disobedience, Life Without Principle, Slavery in Massachusetts, A Plea for Captain John Brown”, p.68, Graphic Arts Books
"Thy Speech Reveals Thee". L. Tom Perry's speech at the Quorum of the Twelve Apostles of The Church of Jesus Christ of Latter-day Saints in Salt Lake City, Utah, www.lds.org. August 1986.