Full Idea
Sense in the sentient, can be nothing else but motion in some of the internal parts of the sentient; and the parts so moved are parts of the organs of sense.
Gist of Idea
Sensation is merely internal motion of the sentient being
Source
Thomas Hobbes (De Corpore (Elements, First Section) [1655], 3.15.02)
Book Reference
Hobbes,Thomas: 'Metaphysical Writings', ed/tr. Calkins,Mary Whiton [Open Court 1905], p.116
A Reaction
Amazingly bold for the time, and presumably influenced by Lucretius. I am sympathetic, but to suggest that sensation is nothing more sounds a bit like a category mistake. Has he grasped that the brain is involved?