The cosmos is full beyond measure of elegant truths; of exquisite interrelationships; of the awesome machinery of nature.

Absolute certainty will always elude us. We will always be mired in error. The most each generation can hope for is to reduce the error. . . .

I find science so much more fascinating than science fiction. It also has the advantage of being true.

Except for fools and madmen, everyone knows that nuclear war would he an unprecedented human catastrophe.

If the greenhouse effect is a blanket in which we wrap ourselves to keep warm, nuclear winter kicks the blanket off.

Where did God come from? If we decide this is an unanswerable question why not save a step and conclude that the origin of the universe is an unanswerable question.

Science is a way to call the bluff of those who only pretend to knowledge. It is a bulwark against mysticism, against superstition, against religion misapplied to where it has no business being.