Some men are more inclined to particular disorders than others; and,
therefore, we say that some people are rheumatic, others dropsical, not
because they are so at present, but because they are often so: some are
inclined to fear, others to some other perturbation. Thus in some there
is a continual anxiety, owing to which they are anxious; in some a
hastiness of temper, which differs from anger, as anxiety differs from
anguish: for all are not anxious who are sometimes vexed, nor are they
who are anxious always uneasy in that manner: as there is a difference
between being drunk and drunkenness; and it is one thing to be a lover,
another to be given to women. And this disposition of particular people
to particular disorders is very common: for it relates to all
perturbations; it appears in many vices, though it has no name. Some
are, therefore, said to be envious, malevolent, spiteful, fearful,
pitiful, from a propensity to those perturbations, not from their being
always carried away by them. Now this propensity to these particular
disorders may be called a sickness from analogy with the body; meaning,
that is to say, nothing more than a propensity towards sickness. But
with regard to whatever is good, as some are more inclined to different
good qualities than others, we may call this a facility or tendency:
this tendency to evil is a proclivity or inclination to falling; but
where anything is neither good nor bad, it may have the former name.

XIII. Even as there may be, with respect to the body, a disease, a
sickness, and a defect, so it is with the mind. They call that a
disease where the whole body is corrupted; they call that sickness
where a disease is attended with a weakness, and that a defect where
the parts of the body are not well compacted together; from whence it
follows that the members are misshapen, crooked, and deformed. So that
these two, a disease and sickness, proceed from a violent concussion
and perturbation of the health of the whole body; but a defect