Date: 1754

"What is the juxta-position of ideas? what is that chain which connects, by intermediate ideas that are the links of it, ideas that are remote, but figurative stile?"

— St John, Henry, styled first Viscount Bolingbroke (1678-1751)

Date: 1793

"The genuine and wholsome state of mind is, to be unloosed from shackles, and to expand every fibre of its frame according to the independent and individual impressions of truth upon that mind."

— Godwin, William (1756-1836)

Date: 1793

The extirpation of error "frees us from the influence of those phantoms which before misled us, shows us our true advantage as consisting in independence and integrity, and binds us by the general consent of our fellow citizens to the dictates of reason, more strongly than with fetters of iron."

— Godwin, William (1756-1836)

Date: 1793

"We put shackles upon our minds, and dare not trust ourselves at large in the pursuit of truth."

— Godwin, William (1756-1836)

Date: 1794

"And as these irritative ideas make up a part of the chain of our waking thoughts, introducing other ideas that engage our attention, though themselves are unattended to, we find it very difficult to investigate by what steps many of our hourly trains of ideas gain their admittance."

— Darwin, Erasmus (1731-1802)