Full Idea
I have more than once stated that I held space to be something purely relative, like time.
Gist of Idea
Space and time are purely relative
Source
Gottfried Leibniz (Letters to Samuel Clarke [1716], 3.4)
Book Reference
Leibniz,Gottfried: 'Philosophical Writings', ed/tr. Parkinson,G.H.R. [Dent 1973], p.210