Date: w. 1821, 1840

"Reason is to imagination as the instrument to the agent, as the body to the spirit, as the shadow to the substance."

— Shelley, Percy Bysshe (1792-1822)

Date: April, 1871

"Intensity. This is the main cause why the ideas that flash on the minds of seers, as in Scott's description, are believed; they come mostly when the nerves are exhausted by fasting, watching and longing; they have a peculiar brilliancy, and therefore they are believed."

— Bagehot, William (1826-1877)