Full Idea
There cannot be any motion other than relative; …if there was one only body in being it could not possibly move.
Gist of Idea
All motion is relative, so a single body cannot move
Source
George Berkeley (The Principles of Human Knowledge [1710], §112)
Book Reference
Berkeley,George: 'The Principles of Human Knowledge etc.', ed/tr. Warnock,G.J. [Fontana 1962], p.121
A Reaction
This seems to agree with with Leibniz in denying the Newton-Clarke idea of absolute space. See Idea 2100. Suppose there were two bodies racing towards one another, when one of them suddenly vanished?
Related Idea
Idea 2100 Space and time are purely relative [Leibniz]