Thus the recent rapid evolution of human intelligence is not only the cause of but also the only conceivable solution to the many serious problems that beset us.

The simplest thought, like the concept of the number one, has an elaborate logical underpinning.

We are star stuff which has taken its destiny into its own hands.

There is a report that says that kids who watch violent TV programs tend to be more violent when they grow up. But did the TV cause the violence, or do violent children preferentially enjoy watching violent programs?

But nature is always more subtle, more intricate, more elegant than what we are able to imagine.

The beauty of a living thing is not the atoms that go into it, but the way those atoms are put together.

It's perilous and foolhardy for the average citizen to remain ignorant about global warming, say, or ozone depletion, air pollution, toxic and radioactive wastes, acid rain, topsoil erosion, tropical deforestation, exponential population growth. Jobs and wages depend on science and technology.