Date: 1819

The "Arab is as intimately connected with camel and horse as is body with soul"

— Goethe, Johann Wolfgang (1749-1832)

Date: 1805-6, published 1833-6

"Spirit often seems to have forgotten and lost itself, but inwardly opposed to itself, it is inwardly working ever forward (as when Hamlet says of the ghost of his father, 'Well said, old mole! canst work i' the ground so fast?') until grown strong in itself it bursts asunder the crust of earth w...

— Hegel, G. W. F. (1770-1831)

Date: 1851

"And so it happens that the person who reads a great deal—that is to say, almost the whole day, and recreates himself by spending the intervals in thoughtless diversion, gradually loses the ability to think for himself; just as a man who is always riding at last forgets how to walk."

— Schopenhauer, Arthur (1788-1860)

Date: August 6 and 20, 1859

"The jaded cart-horse of the commonplace bourgeois mind falters of course in confusion in front of the ditch separating substance from appearance, and cause from effect; but one should not ride carthorses if one intends to go coursing over the very rough ground of abstract reasoning."

— Engels, Friedrich (1820-1895)

Date: February 14, 1860

"But, in England, it is some subaltern spokesman, some worn-out place-hunter, some anonymous nonentity of a so-called Cabinet, that, relying on the donkey power of the Parliamentary mind and the bewildering evaporations of an anonymous press, without making any noise, without incurring any danger...

— Marx, Karl (1818-1883)

Date: 1867

"As the hart pants after fresh water, so pants his soul after money, the only wealth."

— Marx, Karl (1818-1883)