Date: 1851

"For the more one reads the fewer are the traces left of what one has read; the mind is like a tablet that has been written over and over."

— Schopenhauer, Arthur (1788-1860)

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: 2007

"One's collection comes to symbolize the contents of one's mind."

— Updike, John (1932-2009)

Date: 2007

"Books externalize our brains, and turn our homes into thinking bodies."

— Updike, John (1932-2009)

Date: December 10, 2017

"Writing to Wilhelm Fleiss in 1896, Freud used the word Nachträglichkeit --'retranscription'--to describe the brain's action of calling up a memory and revising it in response to fresh circumstances."

— Krauss, Nicole (b. August 18, 1974)