I’d ask [God] why he keeps trying to kill us all with disease, pestilence, and natural disasters. I’d ask why 99% of all species there ever were are now extinct — if God works in...

Ignorance is a virus. Once it starts spreading, it can only be cured by reason. For the sake of humanity, we must be that cure.

Dinosaurs are extinct today because they lacked opposable thumbs and the brainpower to build a space program.

I look up at the night sky, and I know that, yes, we are part of this Universe, we are in this Universe, but perhaps more important than both of those facts is that the...

Science literacy is an important part of what it is to be an informed citizen of society.

… there is no shame in not knowing. The problem arises when irrational thought and attendant behavior fill the vacuum left by ignorance.

You could also ask who’s in charge. Lots of people think, well, we’re humans; we’re the most intelligent and accomplished species; we’re in charge. Bacteria may have a different outlook: more bacteria live and work...

Kids are never the problem. They are born scientists. The problem is always the adults. They beat the curiosity out of kids. They outnumber kids. They vote. They wield resources. That’s why my public focus...

The cosmic perspective not only embraces our genetic kinship with all life on Earth but also values our chemical kinship with any yet-to-be discovered life in the universe, as well as our atomic kinship with...

Science, enabled by engineering, empowered by NASA, tells us not only that we are in the universe but that the universe is in us. And for me, that sense of belonging elevates, not denigrates, the...

I would teach how science works as much as I would teach what science knows. I would assert (given that essentially, everyone will learn to read) that science literacy is the most important kind of...

Robots are important also. If I don my pure-scientist hat, I would say just send robots; I’ll stay down here and get the data. But nobody’s ever given a parade for a robot. Nobody’s ever...

The good thing about science is that it’s true whether or not you believe in it.

When you organize extraordinary missions, you attract people of extraordinary talent who might not have been inspired by or attracted to the goal of saving the world from cancer or hunger or pestilence.

The problem, often not discovered until late in life, is that when you look for things in life like love, meaning, motivation, it implies they are sitting behind a tree or under a rock. The...

Some people think emotionally more often than they think politically. Some think politically more often than they think rationally. Others never think rationally about anything at all.No judgment implied. Just an observation.

… informed ignorance provides the natural state of mind for research scientists at the ever-shifting frontiers of knowledge. People who believe themselves ignorant of nothing have neither looked for, nor stumbled upon, the boundary between...

Doing what has never been done before is intellectually seductive, whether or not we deem it practical.

The moment when someone attaches you to a philosophy or a movement, then they assign all the baggage and all the rest of the philosophy that goes with it to you. And when you want...

We conquer the Independence Day aliens by having a Macintosh laptop computer upload a software virus to the mothership (which happens to be one-fifth the mass of the Moon), thus disarming its protective force field....

We are all connected; To each other, biologically. To the earth, chemically. To the rest of the universe atomically.

Science literacy is being plugged into the forces that power the universe. There is no excuse for thinking that the Sun, which is a million times the size of Earth, orbits Earth.

It’s okay not to know all the answers. It’s better to admit our ignorance than to believe answers that might be wrong. Pretending to know everything closes the door to finding out what’s already there.

One of the biggest problems with the world today is that we have large groups of people who will accept whatever they hear on the grapevine, just because it suits their worldview—not because it is...

And the geek shall inherit the Earth.

Let’s grant that the stars are scattered through space, hither and yon. But how hither, and how yon? To the unaided eye the brightest stars are more than a hundred times brighter than the dimmest....

The knowledge that the atoms that comprise life on earth – the atoms that make up the human body, are traceable to the crucibles that cooked light elements into heavy elements in their core under...

If the whole world shared such experiences, we would then have common dreams and everybody could begin thinking about tomorrow. And if everybody thinks about tomorrow, then someday we can visit the sky together.

We spend the first year of a child’s life teaching it to walk and talk and the rest of its life to shut up and sit down. There’s something wrong there.

Allow intelligent design into science textbooks, lecture halls, and laboratories, and the cost to the frontier of scientific discovery—the frontier that drives the economies of the future—would be incalculable. I don’t want students who could...

I want to put on the table, not why 85% of the members of the National Academy of Sciences reject God, I want to know why 15% of the National Academy don’t.

In the beginning, there was physics. “Physics” describes how matter, energy, space, and time behave and interact with one another. The interplay of these characters in our cosmic drama underlies all biological and chemical phenomena....

For me, I am driven by two main philosophies: know more today about the world than I knew yesterday and lessen the suffering of others. You’d be surprised how far that gets you.

I look forward to the day when the solar system becomes our collective backyard—explored not only with robots, but with the mind, body, and soul of our species.

People cited violation of the First Amendment when a New Jersey schoolteacher asserted that evolution and the Big Bang are not scientific and that Noah’s ark carried dinosaurs. This case is not about the need...

The less evidence we have for what we believe is certain, the more violently we defend beliefs against those who don’t agree.

To learn that it’s easier to be told by others what to think and believe than it is to think for yourself.

vacation” means because what you’re doing is what you want to do and a vacation from that is anything but a vacation — that’s the state of mind of somebody who’s doing what others might...

My view is that if your philosophy is not unsettled daily then you are blind to all the universe has to offer.

The Universe is under no obligation to make sense to you.

Not enough books focus on how a culture responds to radically new ideas or discovery. Especially in the biography genre, they tend to focus on all the sordid details in the life of the person...

Imagine a life-form whose brainpower is to ours as ours is to a chimpanzee’s. To such a species, our highest mental achievements would be trivial. Their toddlers, instead of learning their ABCs on Sesame Street,...

There’s as many atoms in a single molecule of your DNA as there are stars in the typical galaxy. We are, each of us, a little universe.

How do we change the way science is taught?Ask anybody how many teachers truly made a difference in their life, and you never come up with more than the fingers on one hand. You remember...

God is an ever receding pocket of scientific ignorance.

Unlike what you may be told in other sectors of life, when observing the universe, size does matter, which often leads to polite ‘telescope envy’ at gatherings of amateur astronomers.

The more I learn about the universe, the less convinced I am that there’s any sort of benevolent force that has anything to do with it, at all.

Some molecules – ammonia, carbon dioxide, water – show up everywhere in the universe, whether life is present or not. But others pop up especially in the presence of life itself. Among the biomarkers in...

Yes, Your Honor. Why did you say he was in possession of 1,700 milligrams of cocaine? That equals 1.7 grams. The ‘thousand’ cancels with the ‘milli-’ and you get 1.7 grams, which is less than...

Where ignorance lurks, so too do the frontiers of discovery and imagination