BOOK I PART III
derived, and to which it perfectly corresponds;
and influences his ideas of such objects as are
in some respect resembling, but fall not pre-
cisely under the same rule. The circumstances
of depth and descent strike so strongly upon
him, that their influence can-not be destroyed
by the contrary circumstances of support and
solidity, which ought to give him a perfect se-
curity. His imagination runs away with its ob-
ject, and excites a passion proportioned to it.
That passion returns back upon the imagina-
tion and inlivens the idea; which lively idea has
a new influence on the passion, and in its turn
augments its force and violence; and both his
fancy and affections, thus mutually supporting
each other, cause the whole to have a very great
influence upon him.
But why need we seek for other instances,