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."
preview | full record— Darwin, Erasmus (1731-1802)
Date: November 12, 1973
"Mysteries are the food of the mind, and all the fundamental mysteries are necessary to sanity."
preview | full record— Richards, I.A. (1893-1979)
Date: April 18, 2011
"And so it goes, researchers say, with most study sessions: difficulty builds mental muscle, while ease often builds only confidence."
preview | full record— Carey, Benedict (b. 1960)