"What is the indelible mark of the Shorter Catechism? We have the following bit of personal experience from a general officer of the United States army. He was in a great western city at a time of intense excitement and violent rioting. The streets were overrun daily by a dangerous crowd. One day he observed approaching him a man of singularly combined calmness and firmness of mien, whose very demeanor inspired confidence. So impressed was he with his bearing amid the surrounding uproar that when he had passed he turned to look back at him, only to find that the stranger had done the same. On observing his turning the stranger at once came back to him, and touching his chest with his forefinger, demanded without preface, 'What is the chief end of man?' On receiving the countersign, 'Man's chief end is to glorify God and to enjoy him forever' -- 'Ah!' said he, 'I knew you were a Shorter Catechism boy by your looks!' 'Why, that was just what I was thinking of you' was the rejoinder.
It is worthwhile to be a Shorter Catechism boy. They grow up to be men. And better than that, they are exceedingly apt to grow to be men of God."
John E. Meeter, editor, Selected Shorter Writings of Benjamin B. Warfield, I:383-384.