Science can be introduced to children well or poorly. If poorly, children can be turned away from science; they can develop a lifelong antipathy; they will be in a far worse condition than if they had never been introduced to science at all.

The Earth should not be cut up into hundreds of different sections, each inhabited by a self-defined segment of humanity that considers its own welfare and its own "national security" to be paramount above all other consideration.

Was there anything more exciting in life than seeking answers?

There is not a discovery in science, however revolutionary, however sparkling with insight, that does not arise out of what went before.

Old people think young people haven't learned about love. Young people think old people have forgotten about love.

Considering what human beings do and have done to human beings (and to other living things as well) ... I can never imagine what the devil people think computers can add to the horrors.

To insult someone we call him 'bestial. For deliberate cruelty and nature, 'human' might be the greater insult.