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)

Date: 1690, 1694, 1695, 1700, 1706

"We may as well think the use of Reason necessary to make our Eyes discover visible Objects, as that there should be need of Reason, of the Exercise thereof, to make the Understanding see, what is Originally engraven in it"

— Locke, John (1632-1704)

Date: 1690, 1694, 1695, 1700, 1706

"This would be, to make Nature take Pains to no Purpose; Or, at least, to write very ill; since its Characters could not be read by those Eyes, which saw other things very well: and those are very ill supposed the clearest parts of Truth, and the Foundations of all our Knowledge."

— Locke, John (1632-1704)

Date: 1690, 1694, 1695, 1700, 1706

It is as impossible to see with another's eyes as to know with another's understanding

— Locke, John (1632-1704)

Date: 1690, 1694, 1695, 1700, 1706

"I know it is an Opinion, that the Soul always thinks, and that it has the actual Perception of Ideas in it self constantly, as long as it exists; and that actual thinking is as inseparable from the Soul, as actual Extension is from the Body; which if true, to enquire after the beginning of a Man...

— Locke, John (1632-1704)