Gonsalvus Hispanus de Balboa (ca. 1255, Galicia - 13. 04, 1313, Paris)
Theologian and minister general. Studied theology in Paris and became baccalaureus sententiarum in 1288. Provincial minister of Santiago. Master of theology in Paris, ca. 1297. Regent master in the general studium of Paris (1302-1303). Became minister general in 1304. Active as a reformer of the order: promotion of studies, and suppression of the spirituals. Active in the council of Vienna.
Here I have translated some comments on the principle 'omne quod movetur ab alio movetur' which figures in Aquinas' first proof for the existence of God.
Gonsalvus, QQ disputatae, q. 2-3, ad arg. princ. 5 (BFS IX, 28, 47):
[arg. princ. 5] Again, it also seems unfitting on account of some particular; if we do not know to avoid it, we ought not to deny a principle known per se, of the sort whichs that nothing at once is in act and in potency with respect to the same.
To the fifth, that it is not a principle that everything that is moved is moved by another, because that is not a principle of which there is a doubt concerning a particular, nor is it manifest to sense. So it is here, because it is certain that heavy things are moved; by what, however, they are moved, whether by themselves or by another, is doubtful, nor is it manifest to sense.
Again, Thomas, in IaIIae denies that principle, saying that the will in act moves itself through the end (per finem) to those things which are for the end.
Again, it is a principle among the philosophers that an accident is not without a subject. If therefore by Scripture it is implied that an accident is without a subject, as in the sacrament of hte altar, will we deny that principle? But will we deny scripture?