The ecosystem of our world is a closed system: it would run out of gas, collapse of its own weight.
Joan D. VingeIndifference is the strongest force in the universe. It makes everything it touches meaningless. Love and hate don't stand a chance against it.
Joan D. VingeThe mers were also designed to reproduce only at long intervals, in order to maintain the natural balance of the environment in which they were placed.
Joan D. Vinge