Value your parabatai," he said. "For it is a precious bond. All love is precious. It is why we do what we do. Why do we fight demons? Why are they not fit custodians of this world? What makes us better? It is because they do not build, but destroy. They do not love, but hate only. We are human and fallible, we Shadowhunters. But if we did not have the capability to love, we could not guard humans; we must love to guard them. My parabatai, he loved like few ever could love, with all and everything. I see you are like that too; it burns more brightly in you than the fire of Heaven

And sometimes I believe your relentless analysis of June leaves something out, which is your feeling for her beyond knowledge, or in spite of knowledge. I often see how you sob over what you destroy, how you want to stop and just worship; and you do stop, and then a moment later you are at it again with a knife, like a surgeon.What will you do after you have revealed all there is to know about June? Truth. What ferocity in your quest of it. You destroy and you suffer. In some strange way I am not with you, I am against you. We are destined to hold two truths. I love you and I fight you. And you, the same. We will be stronger for it, each of us, stronger with our love and our hate. When you caricature and nail down and tear apart, I hate you. I want to answer you, not with weak or stupid poetry but with a wonder as strong as your reality. I want to fight your surgical knife with all the occult and magical forces of the world.

I feel I could kill. I feel that I might like it. And I know that this should scare me. But it doesn't. It excites me. I am in Plato's cave, watching the shadows and fraught with the desire to hunt what casts them.

There is no greater evil than killing. I don't care whether they call it war or justice. Life is precious.

Kira is evil ... There's no denying that ... But lately I've been starting to think of it more like this ... The real evil is the power to kill people. Someone who finds himself with that power is cursed. No matter how you use it, anything obtained by killing people can never bring true happiness.

If you do not understand the Golden Rule, which is the most important law in the universe, then you are in trouble. All other rules in your holy books combined _ are not as valuable as the ONE Golden Rule. Take two minutes to learn the most crucial law in life. Killing another human comes with the highest penalty, regardless of how you justify it. All life is sacred.