Future Charles Xavier: It is not their pain you are afraid of, it's yours, Charles. And as frightening as it may be, that pain will make you stronger, if you allow yourself to feel it, embrace it. It will make you more powerful than you ever imagined. It's the greatest gift we have, to bear their pain without breaking. And it's born from the most human power - hope. Please, Charles we need you to... Hope again.
Magneto: All those years wasted fighting each other, Charles... For a precious few of them back.