I don't think the human race will survive the next thousand years, unless we spread into space.

Although September 11 was horrible, it didn't threaten the survival of the human race, like nuclear weapons do.

With genetic engineering, we will be able to increase the complexity of our DNA, and improve the human race. But it will be a slow process, because one will have to wait about 18 years to see the effect of changes to the genetic code.

I think the human race doesn't have a future if we don't go into space. We need to expand our horizons beyond planet Earth if we are to have a long-term future.

I have hardly ever known a mathematician who was able to reason.

I am the entire human race compacted together. I have found that there is no ingredient of the race which I do not possess in either a small way or a large way.