Date: 1693
"An impression made on Bees-wax or Lead will not last so long as on Brass or Steel. Indeed, if it be renew'd often, it may last the longer; but every new reflecting on it is a new impression, and 'tis from thence one is to reckon, if one would know how long the Mind reteins it"
preview | full record— Locke, John (1632-1704)