BOOK I PART III
external body. For it will readily be allowed,
that the several instances we have of the con-
junction of resembling causes and effects are
in themselves entirely independent, and that
the communication of motion, which I see re-
sult at present from the shock of two billiard-
balls, is totally distinct from that which I saw
result from such an impulse a twelve-month
ago. These impulses have no influence on each
other. They are entirely divided by time and
place; and the one might have existed and com-
municated motion, though the other never had
been in being.
There is, then, nothing new either discov-
ered or produced in any objects by their con-
stant conjunction, and by the uninterrupted re-
semblance of their relations of succession and
contiguity. But it is from this resemblance, that