Date: 1710, 1714

"Whatever we were employ'd in, whatever we set about; if once we had acquir'd the habit of this Mirrour; we shou'd, by virtue of the double Reflection, distinguish our-selves into two different Partys."

— Cooper, Anthony Ashley, third earl of Shaftesbury (1671-1713)

Date: Tuesday, January 15, 1712

"The Pineal Gland, which many of our Modern Philosophers suppose to be the Seat of the Soul, smelt very strong of Essence and Orange-flower Water, and was encompassed with a kind of Horny Substance, cut into a thousand little Faces or Mirrours, which were imperceptible to the naked Eye, insomuch ...

— Addison, Joseph (1672-1719)

Date: 1715

"Speech was given to Man as the Image and Interpreter of the Soul: It is anime index & speculum, the Messenger of the Heart, the Gate by which all that is within issues forth, and comes into open View."

— Bulstrode, Richard, Sir (1610-1711)

Date: 1731

"And hence it comes to pass, that in Speech, Metaphors and Allegories do so exceedingly please, because they highly gratify this Phantastical Power of Passive and Corporeal Cogitation in the Soul, and seem thereby also something to raise and refresh the Mind it self, otherwise lazy and ready to f...

— Cudworth, Ralph (1617-1688)

Date: 1751, 1777

"They [cruel ideas] still haunt his solitary hours, damp his most aspiring thoughts, and show him, even to himself, in the most contemptible and most odious colours imaginable."

— Hume, David (1711-1776)