Mondays are for answering letters.  This isn’t exactly a letter, but I think it's close enough; it’s a question I have been asked frequently, most recently when I was speaking about natural law at Acton Institute’s annual conference on the foundations of a free and virtuous society.

Everyone admits that pain is educational:  Since I feel agony when I put my hand into the fire, I don’t do it again.  Curiously, we are much more reluctant to admit that there is such a thing as natural disgust, and disgust is educational too.  St. John Chrysostom makes this point exactly in his Homily on First Timothy:

One sometimes hears otherwise faithful persons say that although they never speak to their friends about their faith, they try to live in such a way that their lives will be a witness to the Gospel.

A bogus quote from St. Francis of Assissi is often used in support of this idea.  No, he did not say “Always preach the Gospel, and when necessary, use words.”