Hi Vico,
I agree with you, humans do not have a tendency to sin.
Is it inaccurate for a Catholic to say that desire affects reason?
Thanks
I did not say that, see the Catechism 405 and 406 below. From Aristotle we have the distinction between 1) intellect, as the intuitive faculty, and 2) reason, as the discursive or inferential faculty. The judgement of reason may be effected by passions.
Catechism 1778 “Conscience is a judgment of reason” and 1792 … enslavement to one’s passions, … can be at the source of errors of judgment in moral conduct.
Also regarding conflict between feeling and reason, Catechism 1773:
1773 In the passions, as movements of the sensitive appetite, there is neither moral good nor evil. But insofar as they engage reason and will, there is moral good or evil in them. Passions are said to be voluntary, “either because they are commanded by the will or because the will does not place obstacles in their way.” 44 It belongs to the perfection of the moral or human good that the passions be governed by reason. 45
44 St. Thomas Aquinas, STh I-II,24,1 corp. art.
45 Cf. St. Thomas Aquinas, STh I-II,24,3.
Catechism on how
human nature is wounded and inclined to sin, to evil:
405 Although it is proper to each individual, 295 original sin does not have the character of a personal fault in any of Adam’s descendants. It is a deprivation of original holiness and justice, but human nature has not been totally corrupted: it is wounded in the natural powers proper to it, subject to ignorance, suffering and the dominion of death, and inclined to sin - an inclination to evil that is called concupiscence". Baptism, by imparting the life of Christ’s grace, erases original sin and turns a man back towards God, but the consequences for nature, weakened and inclined to evil, persist in man and summon him to spiritual battle.
406 The Church’s teaching on the transmission of original sin was articulated more precisely in the fifth century, especially under the impulse of St. Augustine’s reflections against Pelagianism, and in the sixteenth century, in opposition to the Protestant Reformation. Pelagius held that man could, by the natural power of free will and without the necessary help of God’s grace, lead a morally good life; he thus reduced the influence of Adam’s fault to bad example. The first Protestant reformers, on the contrary, taught that original sin has radically perverted man and destroyed his freedom; they identified the sin inherited by each man with the tendency to evil (concupiscentia), which would be insurmountable. The Church pronounced on the meaning of the data of Revelation on original sin especially at the second Council of Orange (529) 296 and at the Council of Trent (1546). 297
295 Cf. Council of Trent: Denzinger-Schonmetzer, Enchiridion Symbolorum et Definitionum 1513.
296 Denzinger-Schonmetzer, Enchiridion Symbolorum et Definitionum 371-372.
297 Cf. Denzinger-Schonmetzer, Enchiridion Symbolorum et Definitionum 1510-1516.