Date: 1805-6, published 1833-6

"At such a time, when the encircling crust, like a soulless decaying tenement, crumbles away, and spirit displays itself arrayed in new youth, the seven league boots are at length adopted"

— Hegel, G. W. F. (1770-1831)

Date: 1851

"But, in reading, our head is, however, really only the arena of some one else’s thoughts."

— Schopenhauer, Arthur (1788-1860)

Date: 1851

"The largest library in disorder is not so useful as a smaller but orderly one; in the same way the greatest amount of knowledge, if it has not been worked out in one’s own mind, is of less value than a much smaller amount that has been fully considered."

— Schopenhauer, Arthur (1788-1860)

Date: 1911

"The psychical is divided (to speak metaphorically and not metaphysically) into monads that have no windows and are in communication only through empathy."

— Husserl, Edmund (1859-1938)

Date: 1964

"Its productivity and efficiency, its capacity to increase and spread comforts, to turn waste into need, and destruction into construction, the extent to which this civilization transforms the object world into an extension of man's mind and body makes the very notion of alienation questionable. ...

— Marcuse, Herbert (1898-1979)

Date: 1970

"I should, rather, speak of a labyrinth. I am not concerned here with what is installed in the chamber at its enigmatic centre, ego or fate, but all the more with the many entrances leading into the interior."

— Benjamin, Walter (1892-1940)