Date: 1818, 1859

"Now this is by no means possible, for as soon as we turn into ourselves to make the attempt, and seek for once to know ourselves fully by means of introspective reflection, we are lost in a bottomless void; we find ourselves like the hollow glass globe, from out of which a voice speaks whose cau...

— Schopenhauer, Arthur (1788-1860)

Date: 1830

"To grasp intelligence as this night-like mine or pit in which is stored a world of infinitely many images and representations, yet without being in consciousness, is from the one point of view the universal postulate which bids us treat the notion as concrete, in the way we treat, for example, t...

— Hegel, G. W. F. (1770-1831)

Date: 1831

Anaxarchus when "ordered by Nicocreon, tyrant of Salamis, to be pounded in a mortar [...] in contempt of his mortal sufferings, exclaimed, 'Beat on, tyrant! thou dost but strike upon the case of Anaxarchus; thou canst not touch the man himself'"

— Godwin, William (1756-1836)

Date: 1831

"The mind is so infinitely superior in character to this case of flesh that incloses it, that he cannot persuade himself that it and the body perish together"

— Godwin, William (1756-1836)

Date: 1831

"They skim away from one flower in the parterre of literature to another, like the bee, without, like the bee, gathering sweetness from each, to increase the public stock, and enrich the magazine of thought."

— Godwin, William (1756-1836)

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: w. 1821, 1840

"His language has a sweet and majestic rhythm, which satisfies the sense, no less than the almost superhuman wisdom of his philosophy satisfies the intellect; it is a strain which distends, and then bursts the circumference of the reader's mind, and pours itself forth together with it into the un...

— Shelley, Percy Bysshe (1792-1822)

Date: w. 1821, 1840

"Poetry enlarges the circumference of the imagination by replenishing it with thoughts of ever new delight, which have the power of attracting and assimilating to their own nature all other thoughts, and which form new intervals and interstices whose void forever craves fresh food."

— Shelley, Percy Bysshe (1792-1822)

Date: 1845

"They told a tale of woe which was then altogether beyond my feeble comprehension; they were tones loud, long, and deep; they breathed the prayer and complaint of souls boiling over with the bitterest anguish."

— Douglass, Frederick (1818-1895)

Date: November 24, 1859

"Although I am fully convinced of the truth of the views given in this volume under the form of an abstract, I by no means expect to convince experienced naturalists whose minds are stocked with a multitude of facts all viewed, during a long course of years, from a point of view directly opposite...

— Darwin, Charles (1809-1882)