They who depend upon manifest observations will philosophize better than those who persist in opinions repugnant to the senses.
Galileo GalileiTo excite in us tastes, odors, and sounds I believe that nothing is required in external bodies except shapes, numbers, and slow or rapid movements. ... if ears, tongues, and noses were removed, shapes and numbers and motions would remain, but not odors or tastes or sounds.
Galileo Galilei