BOOK I PART III
contiguity, are to be considered as associating
principles of thought, and as capable of con-
veying the imagination from one idea to an-
other. I have also observed, that when of two
objects connected to-ether by any of these rela-
tions, one is immediately present to the mem-
ory or senses, not only the mind is conveyed to
its co-relative by means of the associating prin-
ciple; but likewise conceives it with an addi-
tional force and vigour, by the united operation
of that principle, and of the present impression.
All this I have observed, in order to confirm
by analogy, my explication of our judgments
concerning cause and effect. But this very ar-
gument may, perhaps, be turned against me,
and instead of a confirmation of my hypothe-
sis, may become an objection to it. For it may
be said, that if all the parts of that hypothesis
be true, viz. that these three species of relation