Here is a good definition of vice and virtue, as described by Saint Basil the Great. My translation to English:
“In fact, the definition of vice is this: to use in an evil manner, or in a manner alien from the precepts of the Lord those abilities given to us to do good. Contrarily, the definition of virtue, that God wants from us, is: the upright use of these same capabilities, which derives from a good conscience according to the teaching of the Lord.” (St. Basil the Great, Regole piu ampie, Risp. 2, 1: PG 31)
Goes back to what we all were taught in catechism. Everything God created was good, and an expression of his love for us. All of creation, then, give back to God what has been given to us, to his greater glory and praise. His gifts are for doing good which is virtue on a natural level, holiness on a supernatural level.
