The doctor who diagnosed me with ALS, or motor neuron disease, told me that it would kill me in two or three years.

More often than politicians, but not as often as they should.

If we can avoid disaster for the next two centuries, our species should be safe as we spread into space. If we are the only intellegent beings in the galaxy we should make sure we survive and continue. . . . Our only chance of long-term survival is not to remain inward looking on planet Earth but to spread out into space. We have made remarkable progress in the last hundred years. But if we want to continue beyond the next hundred years, our future is in space.

If aliens visit us, the outcome would be much as when Columbus landed in America, which didn't turn out well for the Native Americans.

Our population and our use of the finite resources of planet Earth are growing exponentially, along with our technical ability to change the environment for good or ill.

We live in the most probable of all possible worlds.

I wouldnt be here today if it were not for the NHS, I have received a large amount of high-quality treatment without which I would not have survived.