Date: 1761

"Did not your master Plato maintain, that all the art of man, that all philosophy could not extract from the human mind what nature had not implanted there; as all the operations in chemistry are incapable of extracting from any mixture more gold than is already contained in it?"

— Rousseau, Jean-Jacques (1712-1778); Kenrick, William (1729/30-1779)

Date: 1768

"Ye whose clay-cold heads and luke-warm hearts can argue down or mask your passions, tell me, what trespass is it that man should have them?"

— Sterne, Laurence (1713-1768)