Answer:
So simple, that I can only point. Yet I guide men all over the world.
I can be repeated but rarely in the same way. I can't be changed but can be rewritten. I can be passed down but should not be forgotten.
I run smoother than any rhyme I love to fall but cannot climb.
Break me and I am better, immediately set and harder to be broken again. What am I?
I am Invisible Man's drink at snack time
What gift should you give blind people, drunks, and nerds for Christmas?