Date: 1775

"[T]here may be a farther difference in the constitution of the nerves belonging to the different senses, or there may be so many circumstances that affect or modify their vibrations, that they may be as distinguishable from one another, as different human voices sounding the same note; and proba...

— Priestley, Joseph (1733-1804)

Date: 1775

"To lessen this difficulty a little, let it be considered how exceedingly different, to the eye of the mind, as we may say, are our ideas of sensible things from any thing that could have been conjectured concerning their effect upon us."

— Priestley, Joseph (1733-1804)