Answer:
If a man carried my burden, he would break his back. I am not rich, but leave silver in my track.
Goes over all the hills and hollows. Bites hard, but never swallows.
People like this usually live in rural areas, unless they are lucky enough to strike oil and move to Beverly Hills.
What tree that definitely grows does not have a shadow and does not grow fruit?
Whoever makes it, tells it not. Whoever takes it, knows it not. Whoever knows it, wants it not. What is it?
Break me and I am better immediately set and harder to be broken again.