Of all the wonderful Chesterton quotations, perhaps the finest and best known is the following. The Times, having posed the question “What’s wrong with the world today?”, received the immortal reply:

Dear sir,
I am.
Yours, GK Chesterton

It is hardly surprising that the line, expressing a profound (and profoundly Christian) truth with such pithiness and wit, is so loved and repeated. Indeed, it seems the purest slice of Chestertoniana, as though the great man’s expansive spirit had been distilled into epigram form. Even with the original question, the whole thing fits easily into a single tweet.