Full Idea
All mutation consists in motion only
Gist of Idea
Change is nothing but movement
Source
Thomas Hobbes (De Corpore (Elements, First Section) [1655], 2.09.06)
Book Reference
Hobbes,Thomas: 'Metaphysical Writings', ed/tr. Calkins,Mary Whiton [Open Court 1905], p.73
A Reaction
Another little gem of simplicity from Hobbes, and one with which I am inclined to agree. The value of a variable can 'change', but that may be metaphorical.