A model is done when nothing else can be taken out.

You ask: what is the meaning or purpose of life? I can only answer with another question: do you think we are wise enough to read God's mind?

The greatest unsolved mysteries are the mysteries of our existence as conscious beings in a small corner of a vast universe.

If you want to have a program for moving out into the universe, you have to think in centuries not in decades.

A good scientist is a person with original ideas. A good engineer is a person who makes a design that works with as few original ideas as possible. There are no prima donnas in engineering.

Technology must be guided and driven by ethics if it is to do more than provide new toys for the rich.

The idea that global warming is the most important problem facing the world is total nonsense and is doing a lot of harm.

Unfortunately the global warming hysteria, as I see it, is driven by politics more than by science.

In the end it is how you fight, as much as why you fight, that makes your cause good or bad.

So long as you have courage and a sense of humor, it is never too late to start life afresh.

Technology is a gift of God. After the gift of life it is perhaps the greatest of God's gifts. It is the mother of civilizations, of arts and of sciences.

Creating life with words is my favorite magic to weave.

He understood then that neither time nor distance had lessened his love for her.But was love that made him ache with suffering truly worth fighting for?

Prenuptial agreement: Paper a lawyer prepares to protect the party of the first part from the party of the second part should they discover the party's over.

That's always the way when you discover something new; everyone thinks you're crazy.

I don't think it was progressive to vote to give gun makers and sellers immunity. I don't think it was progressive to vote against Ted Kennedy's immigration reform.

The act of reading is a partnership. The author builds a house, but the reader makes it a home.

At the darkest moment comes the light.

I can't control what everyone else swims but if all goes well I know there are no limits.

Intelligence collection has been given an additional bureaucracy to correct the problems created by too much bureaucracy in intelligence collection.

Every novel begins with the speculative question, What if "X" happened? That's how you start.