Theodore Roosevelt Quotes about Nature

Theodore Roosevelt (2015). “Theodore Roosevelt on Bravery: Lessons from the Most Courageous Leader of the Twentieth Century”, p.42, Skyhorse Publishing, Inc.
Theodore Roosevelt, Paul H. Jeffers (1998). “The Bully Pulpit: A Teddy Roosevelt Book of Quotations”, p.32, Taylor Trade Publications
Theodore Roosevelt, Paul H. Jeffers (1998). “The Bully Pulpit: A Teddy Roosevelt Book of Quotations”, p.30, Taylor Trade Publications
Theodore Roosevelt (2012). “In the Words of Theodore Roosevelt: Quotations from the Man in the Arena”, p.73, Cornell University Press
Theodore Roosevelt (1952). “The Big Stick, 1905-1909”