Date: 1785

"Sir, Dr Cheyne has laid down a rule to himself on this subject, which should be imprinted on every mind: 'To neglect nothing to secure my eternal peace, more than if I had been certified I should die within the day: nor to mind any thing that my secular obligations and duties demanded of me, les...

— Boswell, James (1740-1795)

Date: 1786

"Our minds are like blank paper, as a great philosopher has observed, and the first impressions they receive are generally the most permanent and powerful."

— Anonymous

Date: 1787

"That frequently happens; and when once a false idea is impressed, it is very difficult to erase it, particularly at your age; as you are not yet capable of distinguishing the false from the true."

— Louise Florence Pétronille Tardieu d'Ésclavelles Épinay (marquise d') (1726-1783)

Date: 1788

"But in general, I know of no method of getting money, not even that of robbing for it upon the highway, which has so direct a tendency to efface the moral sense, to rob the heart of every gentle and humane disposition, and to harden it, like steel, against all impressions of sensibility."

— Newton, John (1725-1807)