Gregory of Nyssa

The foolish person counts as his own possession that which never actually belongs to him, seemingly ignorant in his greed that "the earth is the Lord's, and the fullness thereof," for "God is king of all the earth." It is the passion of having that gives people a false title of lordship over that which can never belong to them. "The earth," says the wise preacher, "abides forever," ministering to every generation, first one, then another, that is born on it. But people, though they are so little even their own masters that they are brought into life without knowing it by their Maker's will, and before they wish are withdrawn from it, nevertheless in their excessive vanity think that they are its lords; that they, now born, now dying, rule that which remains continually.