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

The laws of science, as we know them at present, contain many fundamental numbers, like the size of the electric charge of the electron and the ratio of the masses of the proton and the electron .... The remarkable fact is that the values of these numbers seem to have been finely adjusted to make possible the development of life.

We only have to look at ourselves to see how intelligent life might develop into something we wouldn't want to meet.

Philosophers have not kept up with modern developments in science. Particularly physics.

The boundary condition of the universe is that it has no boundary.

The life we have on Earth must have spontaneously generated itself. It must therefore be possible for life to generate spontaneously elsewhere in the universe.

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