Date: September 10, 1836

"And the blue sky in which the private earth is buried, the sky with its eternal calm, and full of everlasting orbs, is the type of Reason."

— Emerson, Ralph Waldo (1803-1882)

Date: September 10, 1836

"In my utter impotence to test the authenticity of the report of my senses, to know whether the impressions they make on me correspond with outlying objects, what difference does it make, whether Orion is up there in heaven, or some god paints the image in the firmament of the soul?"

— Emerson, Ralph Waldo (1803-1882)

Date: September 10, 1836

"Whether nature enjoy a substantial existence without, or is only in the apocalypse of the mind, it is alike useful and alike venerable to me."

— Emerson, Ralph Waldo (1803-1882)

Date: March 11, 2011

"The huge submerged bulk of the mental iceberg, with its stores of memory and acquired skills that have become automatic, like language, driving and etiquette, supplies people with the raw materials on which they can exercise their reason and decide what to think and what to do."

— Nagel, Thomas (b. 1937)

Date: December 12, 2016

" And perhaps he speaks / of the nature of light, or the coils in my mind"

— De la O, Marsha