Date: 1682

"They compare a Wicked Man's Mind to a Vitiated Stomach; he corrupts whatever he receives, and the best Nourishment turns to the Disease. But, taking this for granted, a Wicked Man may yet be so far Oblig'd, as to pass for Ungrateful, if he does not Requite what be Receives."

— L'Estrange, Sir Roger (1616-1704)

Date: 1682

"Our Passions are nothing else but certain Disallowable Motions of the Mind; Sudden, and Eager; which, by Frequency, and Neglect, turn to a Disease; as a Distillation brings us first to a Cough, and then to a Phthisick."

— L'Estrange, Sir Roger (1616-1704)

Date: w. 1628, published in 1684, 1701

"The writers displayed many geometrical truths before my very eyes, as it were, and derived them by means of logical arguments"

— Descartes, René (1596-1650)

Date: w. 1628, published in 1684, 1701

"We can best learn how mental intuition is to be employed by comparing it with ordinary vision."

— Descartes, René (1596-1650)

Date: w. 1628, published in 1684, 1701

"Moreover, as we said, we should not contemplate, in one and the same visual or mental gaze, more than two of the innumerable different dimensions which it is possible to depict in the imagination."

— Descartes, René (1596-1650)

Date: 1686, 1689, 1697

"Having spoken in the foregoing Chapter of the Improvements of the Mind by Erudition, it follows of Course that we speak of the Improvement of the Body by Exercise. Indeed a Vigorous and Athletick Habit of Body, doth extreamly advance the like Disposition and Ability in the Mind; Since all Intell...

— Nourse, Timothy (c.1636–1699)

Date: 1690

"Desire implys Want: It is the Appetite of the Soul, and is as natural to the Soul, as Hunger to the Body."

— Barbon, Nicholas (1637/1640-1698/9)

Date: 1690, 1694, 1695, 1700, 1706

"For the Understanding, like the Eye, judging of Objects, only by its own Sight, cannot but be pleased with what it discovers, having less regret for what has scaped it, because it is unknown."

— Locke, John (1632-1704)

Date: 1690, 1694, 1695, 1700, 1706

"We have our Understandings no less different than our Palates; and he that thinks the same Truth shall be equally relished by every one in the same dress, may as well hope to feast every one with the same sort of Cookery: The Meat may be the same, and the Nourishment good, yet every one not be a...

— Locke, John (1632-1704)

Date: 1690, 1694, 1695, 1700, 1706

"The Understanding, like the Eye, whilst it makes us see, and perceive all other Things, takes no notice of itself: And it requires Art and Pains to set it at a distance and make it its own Object."

— Locke, John (1632-1704)