Full Idea
To say that God could cause the universe to move forward in a straight line or otherwise without changing it in any other way is another fanciful supposition.
Gist of Idea
The idea that the universe could be moved forward with no other change is just a fantasy
Source
Gottfried Leibniz (Letters to Samuel Clarke [1716], 4.14)
Book Reference
Leibniz,Gottfried: 'Philosophical Writings', ed/tr. Parkinson,G.H.R. [Dent 1973], p.217