Date: November 1824

"Surely it is no exaggeration to say that no external advantage is to be compared with that purification of the intellectual eye which gives us to contemplate the infinite wealth of the mental world, all the hoarded treasures of its primeval dynasties, all the shapeless ore of its yet unexplored ...

— Thomas Babington Macaulay, 1st Baron Macaulay (1800-1859)

Date: w. btw. April and August, 1844

"Logic -- mind's coin of the realm, the speculative or mental value of man and nature -- its essence which has grown totally indifferent to all real determinateness, and hence unreal -- is alienated thinking, and therefore thinking which abstracts from nature and from real man: abstract thinking."

— Marx, Karl (1818-1883)

Date: 1889

"The story is a fiction, -- the coinage of the brain, -- the book a reality."

— Hare, John Innes Clark (1816-1905)