G.K. Chesterton, St. Thomas Aquinas

That "God looked on all things and saw that they were good" contains a subtlety which the popular pessimist cannot follow, or is too hasty to notice. It is the thesis that there are no bad things, but only bad uses of things. If you will, there are no bad things but only bad thoughts; and especially bad intentions. Only Calvinists can really believe that hell is paved with good intentions. That is exactly the one thing it cannot be paved with. But it is possible to have bad intentions about good things; and good things, like the world and the flesh have been twisted by a bad intention called the devil. But he cannot make things bad; they remain as on the first day of creation. The work of heaven alone was material; the making of a material world. The work of hell is entirely spiritual.

[Chapter IV, "A Meditation on the Manichees"]

G.K. Chesterton, St. Francis of Assisi

There is a bias in man like the bias in the bowl; and Christianity was the discovery of how to correct the bias and therefore hit the mark. There are many who will smile at the saying; but it is profoundly true to say that the glad good news brought by the Gospel was the news of original sin.

[Chapter II, "The World St. Francis Found"]