Date: 1820

"Branched thoughts" or "dark-cluster'd trees" may be new grown in some untrodden region of the mind

— Keats, John (1795-1821)

Date: 1820

"With all the gardener Fancy e'er could feign, / Who breeding flowers, will never breed the same"

— Keats, John (1795-1821)

Date: 1820

"A rosy sanctuary will I dress / With the wreath'd trellis of a working brain"

— Keats, John (1795-1821)

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

"We spurn at the bounds of time and space; nor would the thought be less futile that imagines to imprison the mind within the limits of the body, than the attempt of the booby clown who is said within a thick hedge to have plotted to shut in the flight of an eagle"

— Godwin, William (1756-1836)

Date: 1831

"There are a multitude of causes that will produce a miscarriage of this sort, where the richest soil, impregnated with the choicest seeds of learning and observation, shall entirely fail to present us with such a crop as might rationally have been anticipated"

— Godwin, William (1756-1836)

Date: August 31, 1837

"A strange process too, this, by which experience is converted into thought, as a mulberry leaf is converted into satin."

— Emerson, Ralph Waldo (1803-1882)

Date: August 31, 1837

"The new deed is yet a part of life, — remains for a time immersed in our unconscious life. In some contemplative hour, it detaches itself from the life like a ripe fruit, to become a thought of the mind."

— Emerson, Ralph Waldo (1803-1882)

Date: 1838

The soul "may be a lawn besprinkled o'er with flowers, and stirring shades, and baffled beams"

— Keats, John (1795-1821)

Date: September, 1838

"The tree of my mind of its leaves is stripped, my witticisms too fine are clipped, the kernel out of the shell has been nipped."

— Engels, Friedrich (1820-1895)