George Berkeley (1732). “Alciphron: Or, The Minute Philosopher. In Seven Dialogues. Containing an Apology for the Christian Religion Against Those who are Called Free-thinkers ...”, p.216
George Berkeley, Joseph Stock (1843). “The Works of George Berkeley, D.D., Bishop of Cloyne: Including His Letters to Thomas Prior, Esq., Dean Gervais, Mr. Pope, &c., &c. ; to which is Prefixed an Account of His Life”, p.283
George Berkeley, Joseph Stock (1843). “The Works of George Berkeley, D.D., Bishop of Cloyne: Including His Letters to Thomas Prior, Esq., Dean Gervais, Mr. Pope, &c., &c. ; to which is Prefixed an Account of His Life”, p.202