William Shakespeare, John Payne Collier (1858). “King Henry VI, part 2. King Henry VI, part 3. King Richard III. King Henry VIII. Troilus and Cressida. Coriolanus”, p.525
Ralph Waldo Emerson, Robert Ernest Spiller, Alfred Riggs Ferguson, Joseph Slater, Jean Ferguson Carr (1971). “The Collected Works of Ralph Waldo Emerson: Nature, addresses, and lectures”, p.9, Harvard University Press