"Because the impression is made quickly, it does not follow that it is strong: a susceptible memory, like a soft body, receives some impression at once, and because this impression is perceivable at once, we are at no pains to deepen it, we allow  it to continue slight: when the memory is, as it were, of a harder contexture, the impression is not made without continued labour, it is deep before it can be at all taken notice of, and therefore it is permanent."
An Essay on Genius
Only 1 entry in ESTC (1774).<br>
<br>
<u>An Essay on Genius. By Alexander Gerard, D.D. Professor of Divinity in King's College, Aberdeen.</u> (London: Printed for W. Strahan; T. Cadell, and W. Creech at Edinburgh 1774). &lt;<a href="http://find.galegroup.com/ecco/infomark.do?&source=gale&prodId=ECCO&userGroupName=viva_uva&tabID=T001&docId=CW3315407235&type=multipage&contentSet=ECCOArticles&version=1.0&docLevel=FASCIMILE">Link to ECCO</a>&gt;