Date: 1805-6, published 1833-6

"The third faculty Kant finds in reason, to which he advances from the understanding after the same psychological method; that is to say, he hunts through the soul's sack to see what faculties are still to be found there; and thus by merest chance he lights on Reason."

— Hegel, G. W. F. (1770-1831)

Date: 1805-6, published 1833-6

"It would make no difference if there had been no Reason there, just as with physicists it is a matter of perfect indifference whether, for instance, there is such a thing as magnetism or not."

— Hegel, G. W. F. (1770-1831)

Date: 1833, 1840

"The phenomena must be freed once and for all from the grim torture chamber of empiricism, mechanism, and dogmatism; they must be brought before the jury of man's common sense."

— Goethe, Johann Wolfgang (1749-1832)

Date: December 1840

"Perhaps a friendly Morgan le Fay will make Siegfried's castle rise again for me or show my mind's eye what heroic deeds are reserved for his sons of the nineteenth century."

— Engels, Friedrich (1820-1895)