" Perhaps I was fated to make the choice I did. I dislike the idea of fate, though. I dislike the idea that the things we do are ordained for us by higher powers; that our actions are like shadow-plays performed for their amusement. Most of all, I dislike the idea that the future is set, running away from us in clear lines that we are compelled to follow, with only the illusion of a sovereign will to comfort us on the journey. Nothing I have learned since my ascension has convinced me that I am wrong to think those things. I have learned of the deep metaphysics of the universe, and the long, tired games of the immortals, but I retain faith in our ability to choose. We are the authors of our actions. When the test comes, we can go in either direction: we can triumph, or we can fail, and the universe cares not which. "

― , Brotherhood of the Storm (The Horus Heresy Novella)