"My family was always interested in nature, and that made me curious about it too – we liked to learn about birds and plants and rocks together. It was really fun! In every bird, plant, or rock, there’s a great story waiting to be learned – it’s like watching a really interesting movie or reading a great book. Now, as a professional scientist, it’s my job to learn things about nature. Every day is different from the next, and there’s always something wonderful to learn about the universe and the world around us."

"I'd say that getting started on research early as an undergraduate makes a big difference. If, like me, you don't come from a family background in this area, there are so many exciting things to work on that I knew little about. Undergraduate research upended my preconceived notions of what work in space research is like. I had no idea about what jobs even existed. Working in industry can also be a tremendously valuable experience. Systems engineering work provides a great overview of how spacecraft are built and operated, and seeing the teamwork and cameraderie is inspiring. Teamwork is essential to making missions work; it's like being part of a band or a sports team in that regard. A successful space mission represents hundreds or even thousands of people working together for a common goal, so building teamwork skills is a good idea."

"You can have all your scientific method down, all your experiments done accurately and recorded in minute detail. But most of the significant, universe-changing advances in science were not done by methodically plodding ahead with reasonable steps. Things like Einstein's theory of relativity or the foundations of quantum mechanics came about more as hunches. Scientists talk about a theory being elegant - it just feels right. Sometimes you have to just trust your instincts. People often talk about following your head or your heart, but sometimes there's a deeper feeling you follow. Sometimes you follow your guts, your instincts. Scientists are also trained to do that."

"I also love working for the government (no really!). There is more security working for a government lab and I didn't have to get tenure. The people at NASA are so good -so dedicated, so fun to be with"

"Twenty seconds and counting. T-minus fifteen seconds; guidance is internal. Twelve, eleven, ten, nine, ignition sequence starts; six, five, four, three, two, one, zero. All engine running. Lift-off! We have a lift-off! Thirty-two minutes past the hour, lift-off on Apollo 11. Tower cleared!"

"We had risen to probably one of the greatest challenges in history, put a man on the moon in the decade. We'd created incredible technologies. But what was most important, we'd created the teams, what I call the human factor. People who were energized by a mission. And these teams were capable of moving right on and doing anything America asked them to do in space. And what we did is we watched these teams disappear. We watched the great contractors — the Grummans, the North Americans, the Lockheeds — disappear from the horizon. I think that's really sad that as Americans we have destroyed much of this infrastructure that we had in the days when we went to the moon."

"Failure is not an option."

"In many ways we have the young people, we have the talent, we have the imagination, we have the technology. But I don't believe we have the leadership and the willingness to accept risk, to achieve great goals. I believe we need a long-term national commitment to explore the universe. And I believe this is an essential investment in the future of our nation — and our beautiful, but environmentally challenged planet."

"Spaceflight will never tolerate carelessness, incapacity, and neglect. Somewhere, somehow, we screwed up. It could have been in design, build, or test. Whatever it was, we should have caught it. We were too gung ho about the schedule and we locked out all of the problems we saw each day in our work. Every element of the program was in trouble and so were we. The simulators were not working, Mission Control was behind in virtually every area, and the flight and test procedures changed daily. Nothing we did had any shelf life. Not one of us stood up and said, "Dammit, stop!" I don't know what Thompson's committee will find as the cause, but I know what I find. We are the cause! We were not ready! We did not do our job. We were rolling the dice, hoping that things would come together by launch day, when in our hearts we knew it would take a miracle. We were pushing the schedule and betting that the Cape would slip before we did. From this day forward, Flight Control will be known by two words: "Tough and Competent." Tough means we are forever accountable for what we do or what we fail to do. We will never again compromise our responsibilities. Every time we walk into Mission Control we will know what we stand for. Competent means we will never take anything for granted. We will never be found short in our knowledge and in our skills. Mission Control will be perfect. When you leave this meeting today you will go to your office and the first thing you will do there is to write "Tough and Competent" on your blackboards. It will never be erased. Each day when you enter the room these words will remind you of the price paid by Grissom, White, and Chaffee. These words are the price of admission to the ranks of Mission Control."

"You would think that we’d know the Earth’s ‘climate sensitivity’ by now, but it has been surprisingly difficult to determine. How atmospheric processes like clouds and precipitation systems respond to warming is critical, as they are either amplifying the warming, or reducing it. This website currently concentrates on the response of clouds to warming, an issue which I am now convinced the scientific community has totally misinterpreted when they have measured natural, year-to-year fluctuations in the climate system. As a result of that confusion, they have the mistaken belief that climate sensitivity is high, when in fact the satellite evidence suggests climate sensitivity is low."

"“Global warming” refers to the global-average temperature increase that has been observed over the last one hundred years or more. But to many politicians and the public, the term carries the implication that mankind is responsible for that warming. This website describes evidence from my group’s government-funded research that suggests global warming is mostly natural, and that the climate system is quite insensitive to humanity’s greenhouse gas emissions and aerosol pollution. Believe it or not, very little research has ever been funded to search for natural mechanisms of warming…it has simply been assumed that global warming is manmade. This assumption is rather easy for scientists since we do not have enough accurate global data for a long enough period of time to see whether there are natural warming mechanisms at work."

"The Star Trek computer doesn't seem that interesting. They ask it random questions, it thinks for a while. I think we can do better than that."

"I have a simple algorithm, which is, wherever you see paid researchers instead of grad students, that's not where you want to be doing research."

"Page has long been reclusive, a computer scientist who pondered technical problems away from the public eye, preferring to chase moonshots over magazine covers."

"One flying car seems absurd; Larry Page has three."

"Have a healthy disregard for the impossible."

"I don't know how long I would've stayed, to be honest."

"Sometimes it’s important to wake up and stop dreaming. When a really great dream shows up, grab it"

"It's hard to keep things moving. And that's always a big trick. I think for me, the key is setting really big goals. And, you know, with YouTube, I think we've had tremendous leadership, both with the founders and now with Salar, who's been running it."

"If you look at things like Google Now also. Maybe you want to just have [a question] answered for you before you ask it."