William Shakespeare, Samuel Johnson (1766). “THE PLAYS OF WILLIAM SHAKESPEARE.: CONTAINING, TIMON OF ATHENS. TITUS ANDRONICUS. MACBETH. C. MMARCIUS CORIOLANUS. VOLUME the EIGHTH”, p.59
"Hoyt's New Cyclopedia Of Practical Quotations" by Jehiel Keeler Hoyt, p. 461, The Literary Character, Illustrated by the History of Men of Genius (1795-1822), Chapter XXII, 1922.