You don't NEED one, but you probably SHOULD have one. It just helps speed things up immensely and lowers the chances that you'll burnout. "If you want to go fa

You don't NEED one, but you probably SHOULD have one. It just helps speed things up immensely and lowers the chances that you'll burnout. "If you want to go fast, go by yourself. If you want to go far, go together."