Date: 1801

Virtue may be a man's "eternal flame" or "ruling passion"

— Blacklock, Thomas (1721-1791)

Date: 1810

"Fear was his ruling passion; yet was Love, / Of timid kind, once known his heart to move."

— Crabbe, George (1754-1832)

Date: 1810

"Friends, parents, relatives, hope, reason, love," may "With anxious ardour for that empire strove"

— Crabbe, George (1754-1832)

Date: w. 1821, 1840

"But poetry in a more restricted sense expresses those arrangements of language, and especially metrical language, which are created by that imperial faculty, whose throne is curtained within the invisible nature of man."

— Shelley, Percy Bysshe (1792-1822)

Date: w. 1821, 1840

"The cultivation of those sciences which have enlarged the limits of the empire of man over the external world, has, for want of the poetical faculty, proportionally circumscribed those of the internal world; and man, having enslaved the elements, remains himself a slave."

— Shelley, Percy Bysshe (1792-1822)

Date: w. 1821, 1840

"But even whilst they deny and abjure, they are yet compelled to serve, that power which is seated on the throne of their own soul."

— Shelley, Percy Bysshe (1792-1822)

Date: September, 1843

"In Germany, everything is forcibly suppressed; a real anarchy of the mind, the reign of stupidity itself, prevails there, and Zurich obeys orders from Berlin."

— Marx, Karl (1818-1883)