“Only a sentimental being would care about such everyday things—things used and discarded by the humans of their respective eras without thought, yet kept and preserved by an immortal who never forgot them. An immortal who loved and cared for them, dusting them off for an eternity, keeping their dead spirits as alive as he—stuck in their immortal tomb never to find the rest everything must eventually seek. Time had no meaning in this cavern of infinite age.”

“But on the upside, your seraph form will never age. And the only way to die is by a demon blade. As long you survive fighting them, you’re immortal to the things that would kill a normal human. Think of the money you’ll save on medical bills. (Jack)”

“Birthdays: without them we'd be immortal. But just because you're not immortal, doesn't mean you can't be immature indefinitely.”

“Forgiveness is healing—everything is energy—thoughts create—we are all connected—what you resist persists—true love never dies—the soul’s immortality is the only true immortality—”

“All who live possess eternal life, and few would trade it for an immortal body, if they truly understood what it is to be alive.”

“If it had only been for the immortality gene, humanity would have eventually managed to turn it back on. At one point in history, they would have embarked on a quest to become immortals, like the gods. But they couldn’t and the whole of humanity still can’t and won’t.”