 Suárez thinks that God’s absolute perfection can also be demonstrated a priori. As the first cause of everything and the most necessary being, it is necessary that God is also first in absolute perfection. Suárez adds that the very idea of perfection requires us to posit a completely perfect thing to serve as standard for other beings admitting of degrees of perfection. This standard, he infers, must be God (DM XXX.1.5).