St. Augustine
“Now, of all goods, spiritual or bodily, there is none at all to compare with virtue. For virtue makes a good use of both of itself and of all other goods in which lies man’s happiness; and where it is absent, no matter how many good things a man has, they are not for his good, and consequently should not called good things while they belong to one who makes them useless by using them badly. The life of man, then, is called happy when it enjoys virtues and these other spiritual and bodily good things without which virtue is impossible.”
Source: St. Augustine, City of God