Date: 1678

"Into his studious Closet to stuff his Lunatick head, since he can get nothing for his belly."

— Porter, Thomas (1636-1680)

Date: 1684

"In that white Snow which overspreads your skin, / We trace ye whiter Soul which dwells within."

— Oldham, John (1653-1683)

Date: 1734

"Something as dim to our internal view, / Is thus, perhaps, the cause of most we do."

— Pope, Alexander (1688-1744)

Date: 1773

"There, whilst the vault resounds my plaintive sigh, / In deathful echoes, shall Despondence bring / The saddest visions on the mind's wan eye, / That ever wav'd on Fancy's blackest wing"

— Wolcot, John, pseud. Peter Pindar, (1738-1819)

Date: 1794

"Whereas a due exercise of the faculties of the mind strengthens and improves those faculties, whether of imagination or recollection; as the exercise of our limbs in dancing or fencing increases the strength and agility of the muscles thus employed."

— Darwin, Erasmus (1731-1802)

Date: 1807

"For oft when on my couch I lie / In vacant or in pensive mood, / They [the daffodils] flash upon that inward eye / which is the bliss of solitude."

— Wordsworth, William (1770-1850)

Date: November 12, 1973

"Mysteries are the food of the mind, and all the fundamental mysteries are necessary to sanity."

— Richards, I.A. (1893-1979)