There are too many accidents that can befall life on a single planet.

There are grounds for cautious optimism that we may now be near the end ofthe search for the ultimate laws of nature.

Nothing is better than reading and gaining more and more knowledge.

If a superior alien civilization sent us a message saying, 'We'll arrive in a few decades', would we just reply, 'OK, call us when you get here - we'll leave the lights on'? Probably not - but this is more or less what is happening with AI.

The increase of disorder or entropy with time is one example of what is called an arrow of time, something that distinguishes the past from the future, giving a direction to time.

Disability need not be an obstacle to success.

You can't regulate every lab in the world.