Lawrence G. Lovasik (1999). “The Hidden Power of Kindness: A Practical Handbook for Souls who Dare to Transform the World, One Deed at a Time”, p.124, Sophia Institute Press
William Shakespeare, Samuel Ayscough, Nicholas Rowe, Samuel Johnson (1791). “Shakspeare's Dramatic Works: With Explanatory Notes. To which is Now Added, a Copious Index to the Remarkable Passages and Words”, p.1320