Letting the tundra melt is the equivalent to burning all of the forests in all of the world and their roots two and a half times over.

If we go into space, we need enhancements that handle radiation and osteoporosis... or else we're dead. So what seems like an enhancement in one generation becomes life and death in another generation.

Our ancestors didn't need any genetic enhancements to be able to sit for twelve hours a day and eat fatty, sugary foods, but we need enhancements that handle that altered environment.

George M. Church Quotes