for vengeance: while desire is a
craving for those things especially which are pleasant to the touch,
viz. for pleasures of the table and for sexual pleasures. But these
things are more natural to man than vengeance. Therefore desire is
more natural than anger.

_On the contrary,_ The Philosopher says (Ethic. vii, 6) that "anger
is more natural than desire."

_I answer that,_ By "natural" we mean that which is caused by nature,
as stated in _Phys._ ii, 1. Consequently the question as to whether a
particular passion is more or less natural cannot be decided without
reference to the cause of that passion. Now the cause of a passion,
as stated above (Q. 36, A. 2), may be considered in two ways: first,
on the part of the object; secondly, on the part of the subject. If
then we consider the cause of anger and of desire, on the part of the
object, thus desire, especially of pleasures of the table, and of
sexual pleasures, is more natural than anger; in so far as these
pleasures are more natural to man than vengeance.

If, however, we consider the cause of anger on the part of the
subject, thus anger, in a manner, is more natural; and, in a manner,
desire is more natural. Because the nature of an individual man may
be considered either as to the generic, or as to the specific nature,
or again as to the particular temperament of the individual. If then
we consider the generic nature, i.e. the nature of this man
considered as an animal; thus desire is more natural than anger;
because it is from this very generic nature that man is inclined to
desire those things which tend to preserve in him the life both of
the species and of the individual. If, however, we consider the
specific nature, i.e. the nature of this man as a rational being;
then anger is more natural to man than desire, in so far as anger
follows reason more than desire does. Wherefore the Philosopher says
(Ethic. iv, 5) that "revenge" which pertains to anger "is more
natural to man than meekness": for it is natural to everything to
rise up against things contrary and hurtful. And if we consider the
nature of the individual, in respect of his particular temperament,
thus anger is more natural than desire; for the reason that anger is
prone to ensue from the natural tendency to anger, more than desire,
or any other passion, is to ensue from a natural tendency to desire,
which tendencies result from a man's individual temperament. Because
disposition to anger is d