"We can't start over and develop a Saturn 5-type vehicle from scratch."

"To send humans back to the moon would not be advancing. It would be more than 50 years after the first moon landing when we got there, and we'd probably be welcomed by the Chinese. But we should return to the moon without astronauts and build, with robots, an international lunar base, so that we know how to build a base on Mars robotically."

"Mars is there, waiting to be reached."

"Honestly, I still don't use my computer. My kids use the computer more than I do! I understand that a lot of people are into it, and I have days where I write and stuff, but it's really not for me. It's not my thing."

"The new information technology... Internet and e-mail... have practically eliminated the physical costs of communications."

For any new technology there is always controversy and there always some fear associated with it. I think that's just the price of being first sometimes.

I used to ride motorbikes and drive cars like everything was a racetrack; it was ridiculous. It wasn't because I thought it was cool; it was just because I loved living on the edge. But I've chilled.

I've never been a great one for technology.

Live theater to me is much more free than the movies or television.

Technological progress has merely provided us with more efficient means for going backwards.

I don't go in for the high-end gyms with the high-tech equipment and all the fancy stuff.

“A machine for making revolutions is doing precisely the wrong thing at just the right time.”

There are sadistic scientists who hurry to hunt down errors instead of establishing the truth. 

Certein bodies… become luminous when heated. Their luminosity disappears after some time, but the capacity of becoming luminous afresh through heat is restored to them by the action of a spark, and also by the action of radium. 

We must not forget that when radium was discovered no one knew that it would prove useful in hospitals. The work was one of pure science. And this is a proof that scientific work must not be considered from the point of view of the direct usefulness of it. It must be done for itself, for the beauty of science, and then there is always the chance that a scientific discovery may become like the radium a benefit for mankind. ” 

If they can train you to do it, then eventually they will train a computer to do it.

Notifications are just alarm clocks that someone else is setting for you.

Building technology means you don’t have to choose between practicing science, commerce, and art.

In the digital world, the upside is so large that there’s almost no such thing as risk.

Technology is not only the thing that moves the human race forward, but it’s the only thing that ever has. Without technology, we’re just monkeys playing in the dirt.

The modern world is a gift. It gives us tools and choices, but we need the self-discipline and wisdom to choose wisely.

Things like Twitter and Facebook are not making you happy. They are making you unhappy.

You are essentially playing a game that’s created by the creators of those systems, and yes, it can be a useful game once in a blue moon.

You are engaging in envy, dispute, and resentment, comparison, jealousy, anger, about things that frankly just don’t matter.