no prudence of the world, or
of the devil is accounted a sin. Therefore neither should any
prudence of the flesh be accounted among sins.

_On the contrary,_ No man is an enemy to God save for wickedness
according to Wis. 14:9, "To God the wicked and his wickedness are
hateful alike." Now it is written (Rom. 8:7): "The prudence [Vulg.:
'wisdom'] of the flesh is an enemy to God." Therefore prudence of the
flesh is a sin.

_I answer that,_ As stated above (Q. 47, A. 13), prudence regards
things which are directed to the end of life as a whole. Hence
prudence of the flesh signifies properly the prudence of a man who
looks upon carnal goods as the last end of his life. Now it is
evident that this is a sin, because it involves a disorder in man
with respect to his last end, which does not consist in the goods of
the body, as stated above (I-II, Q. 2, A. 5). Therefore prudence of
the flesh is a sin.

Reply Obj. 1: Justice and temperance include in their very nature
that which ranks them among the virtues, viz. equality and the
curbing of concupiscence; hence they are never taken in a bad sense.
On the other hand prudence is so called from foreseeing
(_providendo_), as stated above (Q. 47, A. 1; Q. 49, A. 6), which can
extend to evil things also. Therefore, although prudence is taken
simply in a good sense, yet, if something be added, it may be taken
in a bad sense: and it is thus that prudence of the flesh is said to
be a sin.

Reply Obj. 2: The flesh is on account of the soul, as matter is on
account of the form, and the instrument on account of the principal
agent. Hence the flesh is loved lawfully, if it be directed to the
good of the soul as its end. If, however, a man place his last end in
a good of the flesh, his love will be inordinate and unlawful, and it
is thus that the prudence of the flesh is directed to the love of the
flesh.

Reply Obj. 3: The devil tempts us, not through the good of the
appetible object, but by way of suggestion. Wherefore, since prudence
implies direction to some appetible end, we do not speak of "prudence
of the devil," as of a prudence directed to some evil end, which is
the aspect under which the world and the flesh tempt us, in so far as
worldly or carnal goods are proposed to our appetite. Hence we speak
of "carnal" and again of "worldly" prudence, according to Luke 16:8,
"The children of this world are more prudent [Douay: 'wiser'] in
their generation," etc. The Apostle includes