William Cowper (1856). “The task, Table talk, and other poems: With critical observations of various authors on his genius and character, and notes, critical and illustrative”, p.271
"50 Successful Marijuana Users Who Prove The Person Matters More Than The Plant" By Ryan J. Reilly, Robin Wilkey, www.huffingtonpost.com. April 18, 2014.
John Flavel (1840). “Divine Conduct: Or, The Mystery of Providence, Wherein the Being and Efficacy of Providence are Asserted and Vindicated ... and the Proper Course of Improving All Providences Pointed Out”, p.58