Date: 1748, 1777

"They [these impressions] are not only placed in a full light themselves, but may throw light on their correspondent ideas, which lie in obscurity."

— Hume, David (1711-1776)

Date: 1748, 1777

"And by this means, we may, perhaps, attain a new microscope or species of optics, by which, in the moral sciences, the most minute, and most simple ideas may be so enlarged as to fall readily under our apprehension, and be equally known with the grossest and most sensible ideas, that can be the ...

— Hume, David (1711-1776)

Date: 1748, 1777

"The internal principles and motives may operate in a uniform manner, notwithstanding these seeming irregularities; in the same manner as the winds, rain, cloud, and other variations of the weather are supposed to be governed by steady principles; though not easily discoverable by human sagacity ...

— Hume, David (1711-1776)

Date: 1748, 1777

"You afterwards become so enamoured of this offspring of your brain, that you imagine it impossible, but he must produce something greater and more perfect than the present scene of things, which is so full of ill and disorder."

— Hume, David (1711-1776)

Date: 1748, 1777

"If they tell me, that they have mounted on the steps or by the gradual ascent of reason, and by drawing inferences from effects to causes, I still insist, that they have aided the ascent of reason by the wings of imagination; otherwise they could not thus change their manner of inference, and ar...

— 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

"[T]his Perception is not a Creature of the Mind, but a Ray emanating directly from the Father of Lights, a fair genuine Stamp of his Hand, who impressed every vital and original Energy on the Mind"

— Fordyce, David (bap. 1711, d. 1751)

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

"In general, the violent Sensations of Pain or Uneasiness which accompany Hunger, Thirst, and the other private Appetites, or too great Fatigue of Mind as well as of Body, prevent the Individual from running to great Excesses in the Exercise of the higher Functions of the Mind, as too intense Tho...

— Fordyce, David (bap. 1711, d. 1751)