Date: 1742

"The mind, unexercised, finds every delight insipid and loathsome; and ere yet the body, full of noxious humours, feels the torment of its multiplied diseases, your nobler part is sensible of the invading poison, and seeks in vain to relieve its anxiety by new pleasures, which still augment the f...

— Hume, David (1711-1776)

Date: 1748, 1754

"In this Light, the Administration itself, nay, every Act of it, becomes an Object of Affection, the Evil disappears, or is converted into a Balm which both heals and nourishes the Mind."

— Fordyce, David (bap. 1711, d. 1751)

Date: 1748, 1754

"[I]t may be said of most Men, that their intellectual Organs are as much shut up and secluded from proper Nourishment and Exercise in that little Circle to which they are confined, as the bodily Organs are in the Womb."

— Fordyce, David (bap. 1711, d. 1751)

Date: 1759

"We are so nice in this respect that even a rape dishonours, and the innocence of the mind cannot, in our imagination, wash out the pollution of the body."

— Smith, Adam (1723-1790)

Date: 1777

"The consciousness of what I mean by this letter to reveal, hangs like guilt upon my mind; therefore it is that I have so long delayed writing."

— Mackenzie, Henry (1745-1831)

Date: April, 1783

"Has he been at work all night without being conscious of it. Have other spirits been making impressions on his sensorium. Are there faculties in the mind quite separate one from another, which, like the eyes of Argus, may some of them be awake while others are asleep, and is the great faculty of...

— Boswell, James (1740-1795)

Date: 1783

"The human brain is a bodily substance; and sensible and permanent impressions made upon it must so far resemble those made on sand by the foot, or on wax by the seal, as to have certain shape, length, breadth, and deepness"

— Beattie, James (1735-1803)

Date: 1785

"To this it is owing, that, in ancient languages, the word which denotes the soul, is that which properly signifies breath or air."

— Reid, Thomas (1710-1796)