"Human Actions" (Actus Humanus) vs. "Actions of a Man" (Actus Hominis)

"Human Actions" (Actus Humanus) vs. "Actions of a Man" (Actus Hominis)

From Summa Theologiae I-II.1.1c et ad 3:

Objection 3. Further, then does a man seem to act for an end, when he acts deliberately. But man does many things without deliberation, sometimes not even thinking of what he is doing; for instance when one moves one's foot or hand, or scratches one's beard, while intent on something else. Therefore man does not do everything for an end.

I answer that, Of actions done by man those alone are properly called "human," which are proper to man as man. Now man differs from irrational animals in this, that he is master of his actions. Wherefore those actions alone are properly called human, of which man is master. Now man is master of his actions through his reason and will; whence, too, the free-will is defined as "the faculty and will of reason." Therefore those actions are properly called human which proceed from a deliberate will. And if any other actions are found in man, they can be called actions "of a man," but not properly "human" actions, since they are not proper to man as man. Now it is clear that whatever actions proceed from a power, are caused by that power in accordance with the nature of its object. But the object of the will is the end and the good. Therefore all human actions must be for an end.

Reply to Objection 3. Such like actions are not properly human actions; since they do not proceed from deliberation of the reason, which is the proper principle of human actions. Therefore they have indeed an imaginary end, but not one that is fixed by reason.

Praeterea, tunc videtur homo agere propter finem, quando deliberat. Sed multa homo agit absque deliberatione, de quibus etiam quandoque nihil cogitat; sicut cum aliquis movet pedem vel manum aliis intentus, vel fricat barbam. Non ergo homo omnia agit propter finem.

Respondeo dicendum quod actionum quae ab homine aguntur, illae solae proprie dicuntur humanae, quae sunt propriae hominis inquantum est homo. Differt autem homo ab aliis irrationalibus creaturis in hoc, quod est suorum actuum dominus. Unde illae solae actiones vocantur proprie humanae, quarum homo est dominus. Est autem homo dominus suorum actuum per rationem et voluntatem, unde et liberum arbitrium esse dicitur facultas voluntatis et rationis. Illae ergo actiones proprie humanae dicuntur, quae ex voluntate deliberata procedunt. Si quae autem aliae actiones homini conveniant, possunt dici quidem hominis actiones; sed non proprie humanae, cum non sint hominis inquantum est homo. Manifestum est autem quod omnes actiones quae procedunt ab aliqua potentia, causantur ab ea secundum rationem sui obiecti. Obiectum autem voluntatis est finis et bonum. Unde oportet quod omnes actiones humanae propter finem sint.

Ad tertium dicendum quod huiusmodi actiones non sunt proprie humanae, quia non procedunt ex deliberatione rationis, quae est proprium principium humanorum actuum. Et ideo habent quidem finem imaginatum, non autem per rationem praestitutum.