, then on a terrible or dangerous object, and so forth. For the
second, that _ideas_ have the same effect with the _object_, dreams
confirm too often.

"The manner I conceive to be thus:--the animal spirits, moved in the
sensory by an object, continue their motion to the brain; whence the
motion is propagated to this or that particular part of the body, as is
most suitable to the design of its creation; having first made an
alteration in the _face_ by its nerves, especially by the _pathetic_ and
_oculorum motorii_ actuating its many muscles, as the dial-plate to that
stupendous piece of clock-work which shows what is to be expected next
from the striking part; not that I think the motion of the spirits in
the sensory continued by the impression of the object all the way, as
from a finger to the foot; I know it too weak, though the tenseness of
the nerves favours it. But I conceive it done in the medulla of the
brain, where is the common stock of spirits; as in an organ, whose
pipes being uncovered, the air rushes into them; but the keys let go,
are stopped again. Now, if by repeated acts of frequent entertaining of
a favourite idea of a passion or vice, which natural temperament has
hurried one to, or custom dragged, the _face_ is so often put into that
posture which attends such acts, that the animal spirits find such
latent passages into its nerves, that it is sometimes unalterably set:
as the _Indian_ religious are by long continuing in strange postures in
their _pagods_. But most commonly such a habit is contracted, that it
falls insensibly into that posture when some present object does not
obliterate that more natural impression by a new, or dissimulation hide
it.

"Hence it is that we see great _drinkers_ with _eyes_ generally set
towards the nose, the adducent muscles being often employed to let them
see their loved liquor in the glass at the time of drinking; which were,
therefore, called _bibitory Lascivious persons_ are remarkable for the
_oculorum nobilis petulantia_, as Petronius calls it. From this also we
may solve the _Quaker's_ expecting face, waiting for the pretended
spirit; and the melancholy face of the _sectaries_; the _studious_ face
of men of great application of mind; revengeful and _bloody_ men, like
executioners in the act: and though silence in a sort may awhile pass
for wisdom, yet, sooner or later, Saint Martin peeps through the
disguise to undo all. A _changeable face_ I have observed to