The total number of stars in the Universe is larger than all the grains of sand on all the beaches of the planet Earth.

We've arranged a civilization in which most crucial elements profoundly depend on science and technology.

Every time you look up at the sky, every one of those points of light is a reminder that fusion power is extractable from hydrogen and other light elements, and it is an everyday reality throughout the Milky Way Galaxy.

I would be very ashamed of my civilization if we did not try to find out if there is life in outer space.

The Earth is a very small stage in a vast cosmic arena.

Our planet is a lonely speck in the great enveloping cosmic dark. In our obscurity, in all this vastness, there is no hint that help will come from elsewhere to save us from ourselves.

I believe that in every person is a kind of circuit which resonates to intellectual discovery-and the idea is to make that resonance work