Date: 1740

"But notwithstanding the empire of the imagination, there is a secret tie or union among particular ideas, which causes the mind to conjoin them more frequently together, and makes the one, upon its appearance, introduce the other."

— Hume, David (1711-1776)

Date: 1742

" But what supreme joy in the victories over vice as well as misery, when, by virtuous example or wise exhortation, our fellow-creatures are taught to govern their passions, reform their vices, and subdue their worst enemies, which inhabit within their own bosoms?"

— Hume, David (1711-1776)

Date: 1744

"That is to say, we think there is no Way hitherto laid down for preserving the Vigour of the Body, and thereby securing such a Supply of animal Spirits as may support the Dominion of the Soul in its full Extent and Activity, so feasible as this, which is suggested to be the Source of the Longevi...

— Campbell, John (1708-75)

Date: 1748, 1777

"They know, that a human body is a mighty complicated machine: That many secret powers lurk in it, which are altogether beyond our comprehension: That to us it must often appear very uncertain in its operations: And that therefore the irregular events, which outwardly discover themselves, can be ...

— Hume, David (1711-1776)

Date: 1748, 1777

"In vain do we hope, that men, from frequent disappointment, will at last abandon such airy sciences, and discover the proper province of human reason."

— Hume, David (1711-1776)

Date: 1748, 1777

"It may, therefore, be a subject worthy of curiosity, to enquire what is the nature of that evidence, which assures us of any real existence and matter of fact, beyond the present testimony of our senses, or the records of our memory."

— Hume, David (1711-1776)

Date: 1748, 1777

"By means of it alone we attain any assurance concerning objects, which are removed from the present testimony of our memory and senses."

— Hume, David (1711-1776)

Date: 1748, 1754

The law "is within us, ever present with us, ever active and incumbent on the Mind, and engraven on the Heart in the fair and large Signatures of Conscience, Natural Affection, Compassion, Gratitude, and universal Benevolence."

— Fordyce, David (bap. 1711, d. 1751)

Date: 1748, 1754

"To those good Dispositions, which respect the several Objects of our Duty, and to all Actions which flow from such Disposition, the Mind gives its Sanction or Testimony."

— Fordyce, David (bap. 1711, d. 1751)

Date: 1748, 1754

"For if Virtue is something that deserves our Esteem and Love, then it must exist before Conscience is exerted, or gives its Testimony."

— Fordyce, David (bap. 1711, d. 1751)