text: I thank you for writing to me so often; for you are revealing your real self to me in the only way you can. I never receive a letter from you without being in your company forthwith. If the pictures of our absent friends are pleasing to us, though they only refresh the memory and lighten our longing by a solace that is unreal and unsubstantial, how much more pleasant is a letter, which brings us real traces, real evidences, of an absent friend! For that which is sweetest when we meet face to face is afforded by the impress of a friend's hand upon his letter, – recognition.