Fawzo is quite right. There are those that have the power and an itch to use it. These person(s) usually end up contriving reasons to do spells and eventually end up spiraling out of control. And there are those that have the power and no desire to use it. Only a need when it arrises. And like Fawzo said, these persons tend to have more reverence for the divine and nature. Just remember, that no matter how much you learn, there is always more.