"Yet in such pursuits great moderation is requisite, lest the mind too freely rove, and idly indulge itself in the airy wilds of fancy, to the neglect of real science and useful improvement."
Letters on Materialism and Hartley's theory of the Human Mind, Addressed to Dr. Priestley, F. R. S.
Berington, Joseph. <u>Letters on Materialism and Hartley's theory of the Human Mind, Addressed to Dr. Priestley, F. R. S.</u> (London: Printed for G. Robinson, and M. Swinney, Birmingham, 1776). &lt;<a href="http://find.galegroup.com/ecco/infomark.do?&contentSet=ECCOArticles&type=multipage&tabID=T001&prodId=ECCO&docId=CW110607470&source=gale&userGroupName=viva_uva&version=1.0&docLevel=FASCIMILE">Link to ECCO</a>&gt;