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I would like to fly in space.Absolutely.That would be cool.I used to just do personally risky things， but now I’ve got kids and responsibilities， so I can’t be my own test pilot.That wouldn’t be a good idea.But I definitely want to fly as soon as it’s a sensible thing to do.

The ethical lines we draw today will shape the science of tomorrow.

The fundamental fact about all of us is that we're alive for a while but will die before long.

By giving people the power to share, we're making the world more transparent.