The media always tries to make everything into a disaster, but it's mostly rubbish.

If you start out with a tragic view of life, then anything since is just a bonus.

Walking the streets of Tokyo with Hawking in his wheelchair ... I felt as if I were taking a walk through Galilee with Jesus Christ [as] crowds of Japanese silently streamed after us, stretching out their hands to touch Hawking's wheelchair. ... The crowds had streamed after Einstein [on Einstein's visit to Japan in 1922] as they streamed after Hawking seventy years later. ... They showed exquisite choice in their heroes. ... Somehow they understood that Einstein and Hawking were not just great scientists, but great human beings.

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

I am saying that all predictions concerning climate are highly uncertain.

People who travel in China tell me that the mood there is still very upbeat, because their media is different from our media. Chinese media emphasize how well things are going and suppress the bad news and publish the good news.

There is no way to find the best design except to try out as many designs as possible and discard the failures.