Science is my territory, but science fiction is the landscape of my dreams.

It has become part of the accepted wisdom to say that the twentieth century was the century of physics and the twenty-first century will be the century of biology.

We must be careful not to discourage our twelve-year-olds by making them waste the best years of their lives preparing for examinations.

We won't really understand the brain until we can make models of it which are analog rather than digital, which nobody seems to be trying very much.

A good cause can become bad if we fight for it with means that are indiscriminately murderous. A bad cause can become good if enough people fight for it in a spirit of comradeship and self-sacrifice. In the end it is how you fight, as much as why you fight, that makes your cause good or bad.

The average student emerges at the end of the Ph.D. program, already middle-aged, overspecialized, poorly prepared for the world outside, and almost unemployable except in a narrow area of specialization. Large numbers of students for whom the program is inappropriate are trapped in it, because the Ph.D. has become a union card required for entry into the scientific job market.

It makes very little sense to believe the output of the climate models.