It really isn't either love or fear, but truth that motivates me. That takes in something wide and deep, and the more I absorb it the more it becomes part of me. It becomes a driving force. It is in scripture. History helps.
I purposely sought writers who had encountered evil face to face like M Scott Peck and Malachi Martin to learn all I can about it, in order to recognize it and stay away from it. So I renew my mind daily, Christ cleanses me daily, and I can live as close to love as possible.