Kevin

“I myself have dreamed up a structure intermediate between Dyson spheres and planets. Build a ring 93 million miles in radius - one Earth orbit - around the sun. If we have the mass of Jupiter to work with, and if we make it a thousand miles wide, we get a thickness of about a thousand feet for the base.

And it has advantages. The Ringworld will be much sturdier than a Dyson sphere. We can spin it on its axis for gravity. A rotation speed of 770 m/s will give us a gravity of one Earth normal. We wouldn't even need to roof it over. Place walls one thousand miles high at each edge, facing the sun. Very little air will leak over the edges.

Lord knows the thing is roomy enough. With three million times the surface area of the Earth, it will be some time before anyone complains of the crowding.”
― Larry Niven

“The second we put a bullet in the head of one of those undead monsters -- the moment one of us drove a hammer into one of their faces -- or cut a head off. We became what we are! And that's just it. THAT's what it comes down to. You people don't know what we are.

We're surrounded by the DEAD. We're among them -- and when we finally give up we become them! We're living on borrowed time here. Every minute of our life is a minute we steal from them! You see them out there. You KNOW that when we die -- we become them. You think we hide behind walls to protect us from the walking dead?

Don't you get it? We ARE the walking dead! WE are the walking dead.”
― Robert Kirkman, The Walking Dead, Vol. 5: The Best Defense

“They used to teach us that evolution of intelligent beings wasn't possible," she said. "Societies protect their weaker members. Civilizations tend to make wheel chairs and spectacles and hearing aids as soon as they have the tools for them. When a society makes war, the men generally have to pass a fitness test before they're allowed, to risk their lives. I suppose it helps win the war." She smiled. "But it leaves precious little room for the survival of the fittest.”
― Larry Niven, The Mote in God's Eye

“It's very difficult for a black man to get out of South-Central Los Angeles, and get out civilized....The only men I know who have escaped, all began reading Robert Heinlein at age ten.”
― Larry Niven, Scatterbrain