David Hume — "Reason is, and ought only to be the slave of the passions, and can never pretend…"

"The error is not in the senses, but in the understanding."

"The only method of freeing us from these abstruse questions, is to enquire seriously into the nature of human understanding, and show, from an exact analysis of its powers and capacities, that it is b…"

"It is an infallible maxim, that no man was ever attached to the present order of things, who did not hope to profit by it."

"The general rule is, that all objects, which are continguous in time and place, and betwixt which there is an original resemblance, are conceived as united by the imagination."

"There is nothing in the mind of man that is not first in the senses, or in the operations of the mind itself."