“Right now there's a commonly-held view among scientists that we know about only four percent of all the matter in the universe. Four percent!""So what about the other 96 percent?""We astrophysicists call it 'dark matter' and 'dark energy.' Maybe we should just call it ignorance. There's so much that we don't know. It's shocking how little we know. And yet we behave like little gods who think we're in control of everything. Like kids with delusions of grandeur. Isn't that what we've made ourselves into? It's as if we're trying to make ourselves believe that four percent is all there is. That everything else, all that we don't know, doesn't exist. But it does. We know it's there; we just don't understand it.”

“Scientists talk about dark matter, the invisible, mysterious substance that occupies the space between stars. Dark matter makes up 99.99 percent of the universe, and they don't know what it is. Well I do. It's apathy. That's the truth of it; pile together everything we know and care about in the universe and it will still be nothing more than a tiny speck in the middle of a vast black ocean of Who Gives a Fuck.”

“When we're in the story, when we're part of it, we can't know the outcome. It's only later that we think we can see what the story was. But do we ever really know? And does anybody else, perhaps, coming along a little later, does anybody else really care? ... History is written by the survivors, but what is that history? That's the point I was trying to make just now. We don't know what the story is when we're in it, and even after we tell it we're not sure. Because the story doesn't end.”

“Its hard to say what was happening inside her head. Her brain doesn't function quite like most people's to begin with and maybe, under a lot of stress, she just lost the ability to hope.Dev pondered this, hope as an ability.I guess that's what's so hard for me to get to, the no hope. To think that, of all the potential scenarios out there, there's not a single good one? It just seems like we- as human beings- know so much, but its nothing compared to what we don't know. The universe surprises us, right? That's just what it does. So how could she be so one hundred percent positive that nothing good would happen?”

“We know how ninety-nine percent of the universe works," he told Carter shortly after they met, "and that's the clockworks, that's what we build with. But the other one percent makes the clockworks wind down. That's inertia. No one knows how that works, but it does. It's that one percent mystery that's the way of our maker. Put everything together, energy and inertia, the explicable and the inexplicable, and that's how you and I make our living.”

“She said we all not only could know everything. We do. We just tell ourselves we don't to make it all bearable.”