Speech has allowed the communication of ideas, enabling human beings to work together to build the impossible. Mankind's greatest achievements have come about by talking, and its greatest failures by not talking. It doesn't have to be like this. Our greatest hopes could become reality in the future. With the technology at our disposal, the possibilities are unbounded. All we need to do is make sure we keep talking.

Real science can be far stranger than science fiction and much more satisfying.

If you are lucky enough to find love, remember it is there and don't throw it away.

We live in the most probable of all possible worlds.

Of course it is possible that UFO's really do contain aliens as many people believe, and the government is hushing it up

In the last 200 years the population of our planet has grown exponentially, at a rate of 1.9% per year. If it continued at this rate, with the population doubling every 40 years, by 2600 we would all be standing literally shoulder to shoulder.

Nothing is fool-proof to a sufficiently talented fool.