Science can amuse and fascinate us all, but it is engineering that changes the world.

I have never written a book that didn't teach me far more than it taught my reader.

With both people and computers on the job, computer error can be more quickly tracked down and corrected by people and, conversely, human error can be more quickly corrected by computers. What it amounts to is that nothing serious can happen unless human error and computer error take place simultaneously. And that hardly ever happens.

Humanity is cutting down its forests, apparently oblivious to the fact that we may not be able to live without them.

I don't subscribe to the thesis, 'Let the buyer beware,' I prefer the disregarded one that goes, 'Let the seller be honest.'

The saddest aspect of life right now is that science gathers knowledge faster than society gathers wisdom.

Why continue? Because we must. Because we have the call. Because it is nobler to fight for rationality without winning than to give up in the face of continued defeats. Because whatever true progress humanity makes is through the rationality of the occasional individual and because any one individual we may win for the cause may do more for humanity than a hundred thousand who hug their superstitions to their breast.