Mark Twain (2014). “Mark Twain on Common Sense: Timeless Advice and Words of Wisdom from America's Most-Revered Humorist”, p.31, Skyhorse Publishing, Inc.
Philip Massinger, William Gifford, John Ferriar (1813). “The bandman. The renegado. The parliament of love. The Roman actor. The great Duke of Florence”, p.204
Vincent van Gogh, Vincent Willem Gogh (1927). “The Letters of Vincent Van Gogh to His Brother, 1872-1886: With a Memoir by His Sister-in-law, J. Van Gogh-Bonger ...”