For (not to go so far as annihilation of any particular body) I ask, whether a man cannot have the idea of the motion of one single body alone, without any other succeeding immediately into its place?
I think it is evident he can: the idea of motion in one body no more including the idea of motion in another, than the idea of a square figure in one body includes the idea of a square figure in another.

I do not ask, whether bodies do so EXIST, that the motion of one body cannot really be without the motion of another.

To determine this either way, is to beg the question for or against a VACUUM.

But my question is,--whether one cannot have the IDEA of one body moved, whilst others are at rest?
And I think this no one will deny.

If so, then the place it deserted gives us the idea of pure space without solidity; whereinto any other body may enter, without either resistance or protrusion of anything.