Whether it is proper to the rational nature to act for an end?

❌ Objection 1 : It would seem that it is proper to the rational nature to act for an end. For man, to whom it belongs to act for an end, never acts for an unknown end. On the other hand, there are many things that have no knowledge of an end; either because they are altogether without knowledge, as insensible creatures: or because they do not apprehend the idea of an end as such, as irrational animals. Therefore it seems proper to the rational nature to act for an end.

❌ Objection 2 : Further, to act for an end is to order one's action to an end. But this is the work of reason. Therefore it does not belong to things that lack reason.

❌ Objection 3 : Further, the good and the end is the object of the will. But "the will is in the reason" (De Anima iii, 9). Therefore to act for an end belongs to none but a rational nature.