If you want your son or daughter to be positive. Like to enjoy life and so on and so on - focus on the positive, nature, birds, quite and fast waterfalls... If you want to be negative which will mean a killer, a slaughter focus on the negative. Kill infront of the eyes a chicken slaughter it, fast and quick... do it often, read scary horror books!

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

Very often people have a very limited way of thinking.

The degree of freedom we enjoy outwardly is a reflection of the degree of love we cultivate inwardly.

Though denigrated by some outside academia and research, she embraced knowledge for its own sake and what better way to honor that than reveling in the intricacies of the brain? If there were any answers to the human condition, if an immortal soul made its home anywhere, it was in its spongy gray folds.

A mind is a simulation that simulates itself.