Answer:
I scribble forms of the finest letter, And repel elements of the harshest weather. I am an arrow-aimer and a dust-breaker.
Do you know what you can hold without ever touching it?
Look into my face and I'm everybody. Scratch my back and I'm nobody.
Something wholly unreal, yet seems real to I. Think my friend, tell me where does it lie?
Whoever makes it, tells it not. Whoever takes it, knows it not. Whoever knows it, wants it not. What is it?
Why is the letter B always cool?