Such acts are moral, i.e. they are morally permissible.
Some moral acts deserve a reward; other moral acts do not deserve a reward, but are still licit. All immoral acts deserve a punishment.
“every human action that proceeds from deliberate reason, if it be considered in the individual, must be good or bad.” – St. Thomas, Summa, I-II, 18, 9.
I think it would have been more instructive if you had quoted the next sentence in Article 9. Thomas makes my point clearly by restating the former sentence’s conclusion as conditional on the presence of deliberate reason:
“If, however, it does not proceed from deliberate reason, but from some act of the imagination, as when a man strokes his beard, or moves his hand or foot; such an action, properly speaking, is not moral or human; since this depends on the reason. Hence it will be
indifferent, as standing apart from the genus of moral actions” (emphsis mine).
An act can be merely an objective sin, and not also an actual sin, if the person is invicibly ignorant. But the act is still referred to as a type of sin.
I have never seen an intrinsically evil act referred to as a “type of sin.” Do you have a reference in support? Specifically, the teaching is that although intrinsically evil acts have always and everywhere evil effects, there are no instrinsically sinful acts per se. The subjective fonts also determine the culpability or sinfulness of the act.
CCC #1793 “If - on the contrary - the ignorance is invincible, or the moral subject is not responsible for his erroneous judgment, the evil committed by the person cannot be imputed to him. It remains no less an evil, a privation, a disorder. One must therefore work to correct the errors of moral conscience.”
The third font is only the good and bad consequences reasonably anticipated at the time that the act was chosen, not the actual later outcome. If the good consequences outweigh the bad, then the third font is moral.
Not necessarilly. In its objective content, not only must proportion be considered but the act itself must be good or indifferent, and the good effects must not proceed from the evil effects. If all three objective conditions are met, then the third font is moral.
On the point that even one bad font causes the act to be immoral:
Saint Thomas Aquinas: “Nothing hinders an action that is good in one of the ways mentioned above, from lacking goodness in another way. And thus it may happen that an action which is good in its [2] species or in its [3] circumstances is ordained to an evil [1] end, or vice versa. However, an action is not good simply, unless it is good in all those ways: since ‘evil results from any single defect, but good from the complete cause,’ as Dionysius says (Div. Nom. iv).”
USCCB Catechism: “Every moral act consists of three elements: the objective act (what we do), the subjective goal or intention (why we do the act), and the concrete situation or circumstances in which we perform the act… All three aspects must be good – the objective act, the subjective intention, and the circumstances – in order to have a morally good act.”
Have you revised your position from being always “sinful” to simply “immoral”? While there is a correspondence between evil and sin there is also a grave difference – heaven or hell.
And your argument does not follow your revised claim. The argument for determining a
morally good act stated above is different from the argument needed to support your prior claim: “If any one or more fonts is bad (immoral, evil), then the overall act is immoral; it is
always a sin to choose an act that has one or more bad fonts” or your revised claim “even one bad font causes the act to be
immoral.”
The point is that acts that are always immoral are not always sinful.