Thomas Aquinas,
Summa Theologiae — Question 104 - OF OBEDIENCE…
“ Now there are three kinds of human goods that man may contemn for God's sake. The lowest of these are external goods, the goods of the body take the middle place, and the highest are the goods of the soul; and among these the chief, in a way, is the will, in so far as, by his will, man makes use of all other goods. Therefore, properly speaking, the virtue of obedience, whereby we contemn our own will for God's sake, is more praiseworthy than the other moral virtues, which contemn other goods for the sake of God. ”
