Date: w. before 1641, 1883

"[H]is face was the frontispice of his mind, hee knew not how to dissemble a thought."

— Smyth, John (1567-1640)

Date: 1900

"Then from this hour deep on my heart engraved / Be all my duty needful."

— Cowper, William (1731-1800)

Date: November 22, 1990

"The nervous system adapts, is tailored, evolves, so that experience, will, sensibility, moral sense, and all that one would call personality or soul becomes engraved in the nervous system."

— Sacks, Oliver (b. 1933)

Date: 1992

"Even more important to David than the very natural worry that his wife and his son might grow fond of one another was the intoxicating feeling that he had a blank consciousness to work with, and it gave him great pleasure to knead this yielding clay with his artistic thumbs."

— Edward St. Aubyn (b. 1960)

Date: 1999

"I tried to keep my mind white and blank."

— Budnitz, Judy (b. 1973)

Date: 2000

"He must get the whole thing clear, like a diagram hanging in the translucent space of his imagination, the blueprint of a missile that would lay waste to the Great Consciousness Debate."

— Edward St. Aubyn (b. 1960)

Date: November 15, 2016

"He [Trump] has set the worst human impulses marching. But there are no clean slates in the unconscious."

— Rose, Jacqueline (b. 1949)