IF YOU want authoritative information on any subject, to whom do you go? To the leading authority on that subject, do you not? Even if your own knowledge of the subject were quite thorough, you would be inclined to check your information by that of some one who knows as much as you do, or more. Wise men go to headquarters for what they want. They find that the head of the firm is often more approachable than the subordinates, and that even if the subordinates are willing to co-operate, they may not have as complete information as the chief executive, It is so in practical Christianity