Omelets and eggs, my friend. If mutants don't have enough sense and gratitude to align themselves with my cause then they are, by definition, against it. And while I like to think of myself as a pretty easygoing guy, the one thing I will not tolerate is opposition. [Really, arguing this sort of thing against a man who comes from a time and place where the Hippocratic Oath was less of an oath and more of a vague suggestion isn't exactly going to get Charles anywhere. There's no way for anyone to appeal to morality because there is no morality there. At least, not in the sense Charles and most of humanity shares.]

Yes, Charles. Our future. There will have to be sacrifices as there are always sacrifices on the road to destiny. [He keeps a straight face for all of two seconds and then grins.] I'm just messing with you. I'm doing this because you were in my way and now you're not and you're a means to an end for controlling Magneto. Surprise, I guess.

[chuckle] I'm the master of my own body. Neurotransmitters are just that: chemicals, coupled with synapses firing in the brain. Your compassion is sweet. Really, it is. But it's exactly what landed you here, with me, in this cell, alone and powerless.