in beasts and children, so that they cannot be founded on
abstruse reasoning, 33;
to explain our inferences from experience a principle is required of
equal weight and authority with reason, 34.

B. _Custom enables us to infer existence of one object from the
appearance of another_, 35-38.

Experience enables us to ascribe a more than arbitrary connexion to
objects, 35;
we are determined to this by custom or habit which is the great guide
of human life, 36;
but our inference must be based on some fact present to the senses
or memory, 37;
the customary conjunction between such an object and some other
object produces an operation of the soul which is as
unavoidable as love, 38;
animals also infer one event from another by custom, 82-84;
and in man as in animals experimental reasoning depends on a species
of instinct or mechanical power that acts in us unknown to
ourselves, 85.

C. _Belief_, 39-45.
Belief differs from fiction or the loose reveries of the fancy by
some feeling annexed to it, 39;
belief cannot be defined, but may be described as a more lively,
forcible, firm, steady conception of an object than can be
attained by the imagination alone, 40;
it is produced by the principles of association, viz. resemblance,
41;