The dwelling should befit the dweller. But the world was made to be man’s dwelling; therefore, it should be fitting for man. Now, man will be renewed; therefore, the world will be likewise. . . . Now man has some likeness to the universe by which he is called “a little world.” Thus, man loves the whole world naturally and consequently desires its good. Therefore, so that man’s desire is satisfied, the universe must also be made better.
~Thomas Aquinas, Summa Theologica