Whether prudence of the flesh is a mortal sin?

❌ Objection 1 : It would seem that prudence of the flesh is a mortal sin. For it is a mortal sin to rebel against the Divine law, since this implies contempt of God. Now "the prudence [Douay: 'wisdom'] of the flesh . . . is not subject to the law of God" (Rm. 8:7). Therefore prudence of the flesh is a mortal sin.

❌ Objection 2 : Further, every sin against the Holy Ghost is a mortal sin. Now prudence of the flesh seems to be a sin against the Holy Ghost, for "it cannot be subject to the law of God" (Rm. 8:7), and so it seems to be an unpardonable sin, which is proper to the sin against the Holy Ghost. Therefore prudence of the flesh is a mortal sin.

❌ Objection 3 : Further, the greatest evil is opposed to the greatest good, as stated in Ethic. viii, 10. Now prudence of the flesh is opposed to that prudence which is the chief of the moral virtues. Therefore prudence of the flesh is chief among mortal sins, so that it is itself a mortal sin.