"Gravity is constant, but its measure depends on the curvature of spacetime, how close one object of mass is to another. You need a common denominator, something that any civilization, on any planet, no matter its mass or location, anywhere in the universe would know."
"That's not my point. My point is that the world as you know it is over. People are desperate. They act out of self-interest. Sex and alcohol for me. For the folks you're going to call, it's about preserving their power. You're giving them the means to do that: hope. When you've delivered that, they won't need you anymore. This world isn't the one you remember. It will chew you up and spit you out, Mare."