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Theodore Roosevelt (2015). “Theodore Roosevelt on Bravery: Lessons from the Most Courageous Leader of the Twentieth Century”, p.96, Skyhorse Publishing, Inc.
Thomas Otway, Aaron Hill, Edward Young, Nathaniel Lee (1765). “THE ENGLISH THEATRE IN EIGHT VOLUMES: CONTAINING The Most Valuable PLAYS Which Have Been Acted on the LONDON STAGE.. REVENGE. By Dr. Young. RIVAL QUEENS. By Mr. Lee. THEODOSIUS, or the FORCE of LOVE. By Mr. Lee. VENICE PRESERVED. By Mr. Otway. ZARA. By A. Hill. Esq”, p.51