The termination of these three dimensions is what we call figure.

This figure is moveable, separable, and divisible.

Mobility, and separability are the distinguishing properties of extended objects.

And to cut short all disputes, the very idea of extension is copyed from nothing but an impression, and consequently must perfectly agree to it.

To say the idea of extension agrees to any thing, is to say it is extended.
The free-thinker may now triumph in his turn; and having found there are impressions and ideas really extended, may ask his antagonists, how they can incorporate a simple and indivisible subject with an extended perception?
All the arguments of Theologians may here be retorted upon them.