When I get bored, or get stuck on an equation, I like to go ice skating, but it makes you forget your problem. Then you can tackle the problem with a fresh new insight. Einstein liked to play the violin to relax. Every physicist likes to have a past time. Mine is ice skating.

What we usually consider as impossible are simply engineering problems... there's no law of physics preventing them.

The media, of course, loves to make claims about the fountain of youth. Don't believe it. No one has it. But we're getting close.

The most likely possibility, favored by current data, is that the universe will die in Ice, not Fire. However, personally I believe that trillions of years from now, we (if we are still around) will have the technology to leave the universe, perhaps in an interdimensional life boat, and move to a warmer universe.

I'm not a science fiction writer, I'm a physicist. These are scientists who are making the future in their laboratories.

We are not at the end but at the beginning of a new physics. But whatever we find, there will always be new horizons continually awaiting us.

[T]he yeoman's work in any science, and especially physics, is done by the experimentalist, who must keep the theoreticians honest.