Full Idea
Leibniz eventually rejected extension altogether as part of the essence of body, and replaced it with resistance.
Gist of Idea
Leibniz eventually said resistance, rather than extension, was the essence of body
Source
report of Gottfried Leibniz (works [1690]) by Robert Pasnau - Metaphysical Themes 1274-1671 15.5
Book Reference
Pasnau,Robert: 'Metaphysical Themes 1274-1671' [OUP 2011], p.317
A Reaction
This makes body consist of active force, rather than mere geometry. Much better.
Related Idea
Idea 16684 Impenetrability only belongs to the essence of extension [Descartes]