There's no doubt that scientific training helps many authors to write better science fiction. And yet, several of the very best were English majors who could not parse a differential equation to save their lives.

My first duty to write a gripping yarn. Second is to convey credible characters who make you feel what they feel. Only third comes the idea.

We already live a very long time for mammals, getting three times as many heartbeats as a mouse or elephant. It never seems enough though, does it?

When it comes to privacy and accountability, people always demand the former for themselves and the latter for everyone else.

My education and background thoroughly inform my writing.

Anyone who wants simple, pat stories should buy another author's product. The real universe ain't that way, and neither are my fictive ones.

The worst mistake of first contact, made throughout history by individuals on both sides of every new encounter, has been the unfortunate habit of making assumptions. It often proved fatal.

It is said that power corrupts, but actually it's more true that power attracts the corruptible. The sane are usually attracted by other things than power.

I would normally never set out to write a trilogy.

But honestly, if you do a rigorous survey of my work, I'll bet you'll find that biology is a theme far more often than physical science.

In the book, America had already been weakened by bio terror plagues before waves of selfish violence took down the rest. But the real enemy was the kind of male human being who nurses fantasies of violent glory at the expense of his fellow citizens.

Why must conversions always come so late? Why do people always apologize to corpses?

Predicting has a spotty record in science fiction. I've had some failures. On the other hand, I also predicted the fall of the Berlin Wall and the rise of fundamentalist Islam... and I'm not happy to be right in all of those cases.

Above all, TRIBES is fun, and even kind of sexy... in that every round features an Opportunity for Reproduction, which is the main aim of the game, as it is in most of Nature.

Self-righteous people can talk themselves into forgetting they are part of a civilization. They can then feed on that culture, bringing it down. It's happened many times in the past. It could happen to us.

When I begin a book, I inevitably discover many things along the way, about the characters, their past histories and the political intrigues that surround them. This discovery process is vital, and I would not prejudice it by deciding too much in advance.

I find humans tremendously interesting.

Only a knowledgeable, empowered and vocal citizenry can perform well in democracy.

Fortunately, human beings are remarkably diverse models to work from.

There's no doubt that scientific training helps many authors to write better science fiction. And yet, several of the very best were English majors who could not parse a differential equation to save their lives.

I like to be surprised. Fresh implications and plot twists erupt as a story unfolds. Characters develop backgrounds, adding depth and feeling. Writing feels like exploring.

One of the rules I try to follow is that normal people are going to be involved even in heroic events.

But it is a delightful challenge to try to depict interesting aliens.

Change is the principal feature of our age and literature should explore how people deal with it. The best science fiction does that, head-on.

She had called in the debt that parents owe a child for bringing her, unasked, into a strange world. One should never make an offer without knowing full well what will happen if it is accepted.

Only people with full stomachs become environmentalists.

Self awareness is probably overrated. A complex, self regulating system doesn't need it in order to be successful, or even smart.

There is no rational reason to doubt that the universe has existed indefinitely, for an infinite time. It is only myth that attempts to say how the universe came to be, either four thousand or twenty billion years ago.

When in doubt wear red.

As I think through the issue of funding the rebuilding of Iraq, I think about the analogy of a bankruptcy proceeding. There is no doubt that Iraq as a country is bankrupt.

After having dispatched a meal, I went ashore, and found no habitation save a single house, and that without an occupant; we had no doubt that the people had fled in terror at our approach, as the house was completely furnished.

If you would be a real seeker after truth, it is necessary that at least once in your life you doubt, as far as possible, all things.

We criticize, copy, patronize, idolize and insult but we never doubt that the U.S. has a unique position in the history of human hopes.

If you've got talent, stick with it... because talent wins out, without a doubt.

That a great battle must soon be fought no one could doubt; but, in the apparent and perhaps real absence of plan on the part of Lee, it was impossible to foretell the precise scene of the encounter.

I would not be gotten into a schoolhouse until I was eight years old. Nor did I accomplish much after I started. I doubt if I had gone to school six months in all when my father died. I was fourteen at the time.

No doubt Western civilization has in the past been full of wars and revolutions, and the national elements in our culture, even when they were ignored, always provided an unconscious driving force of passion and aggressive self-assertion.

You have to not listen to the nay sayers because there will be many and often they'll be much more qualified than you and cause you to sort of doubt yourself.

It has since been agreed that speeches given in English will be translated into French and vice versa, and even into German and Italian when necessary. No doubt translations into Esperanto will also soon be in demand.

Who has suffered? The families of the dead, no doubt. But a greater loss was inflicted on Pakistan because, as I said, we lost the pillars of our society.

I find that the best way to do things is to constantly move forward and to never doubt anything and keep moving forward, if you make a mistake say you made a mistake.

I know that we're being inexorably taken over by the Americans. Without a doubt. I don't mean invaded or anything like that, just taken over. By degrees.

My esoteric doctrine, is that if you entertain any doubt, it is safest to take the unpopular side in the first instance. Transit from the unpopular, is easy... but from the popular to the unpopular is so steep and rugged that it is impossible to maintain it.

What matters to us, the judgment of men? What have we to doubt, since we are pure before life?

Doubt is part of all religion. All the religious thinkers were doubters.

Should doubt knock at your doorway, just say to those skeptical, disturbing, rebellious thoughts, I propose to stay with my faith, with the faith of my people.

When in doubt, take more time.

The road to perseverance lies by doubt.

It's a technical, fairly difficult job that has no particular political connotations, so I doubt there are any big campaign contributors dying to be on the Fed. And remember, it doesn't pay very well, certainly by Republican standards.