Date: 1767

"One obvious effect of it is, that it confines the attention to artificial rules, and ties the mind down to the observance of them, perhaps at the very time that the imagination is upon the stretch, and grasping at some idea astonishingly great, which however it is obliged, though with the utmost...

— Duff, William (1732-1815)

Date: 1770

"But this faculty [Reason] has been much perverted, often to vile, and often to insignificant purposes; sometimes chained like a slave or malefactor, and sometimes soaring in forbidden and unknown regions."

— Beattie, James (1735-1803)

Date: 1791

"Your resolution to obey your father I sincerely approve; but do not accustom yourself to enchain your volatility by vows; they will sometime leave a thorn in your mind, which you will, perhaps, never be able to extract or eject."

— Boswell, James (1740-1795)

Date: 1791

"His supposed orthodoxy here cramped the vigorous powers of his understanding. He was confined by a chain which early imagination and long habit made him think massy and strong, but which, had he ventured to try, he could at once have snapt asunder."

— Boswell, James (1740-1795)