Answer:
Brown I am and much admired. Many horses have I tried. Tire a horse and worry a man, tell me this riddle if you can. What am I?
I never was but always will be. No one ever saw me but everyone knows I exist. I give people the motivation to better themselves everyday
The more you work the more I'll eat.You keep me full I'll keep you neat.
I look at you you look at me I raise my right you raise your left.
I jump when I walk and sit when I stand.
What never gets any wetter no matter how hard it rains?