Ralph Waldo Emerson, Robert Ernest Spiller, Alfred Riggs Ferguson, Joseph Slater, Jean Ferguson Carr (1971). “The Collected Works of Ralph Waldo Emerson: English traits”, p.155, Harvard University Press
William Shakespeare, Edmond Malone, Samuel Johnson, George Steevens (1790). “The Plays and Poems of William Shakspeare: pt. 2. Historical account of the English stage. Emendations and additions. Tempest. Two gentlemen of Verona”, p.220