Answer:
I am the tool, for inspiring many. Buy me in the store, for not much more than a penny. Don't overuse me, or my usefulness will go.
When you stop and look, you can always see me. If you try to touch, you cannot feel me. I cannot move, but as you near me, I will move away from you.
I'm the source of all emotion, but I'm caged in a white prison.
The more you take, the more you leave behind.
Alive without breath, As cold as death, Clad in mail never clinking, Never thirsty, ever drinking
If lightning strikes an orchestra who is the one most likely to get hit?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?