If some good evidence for life after death were announced, I'd be eager to examine it; but it would have to be real scientific data, not mere anecdote. As with the face on Mars and alien abductions, better the hard truth, I say, than the comforting fantasy.

I promise to question everything my leaders tell me. I promise to use my critical faculties. I promise to develop my independence of thought. I promise to educate myself so I can make my own judgments.

Not explaining science seems to me perverse. When you're in love, you want to tell the world.

The Earth is a place. It is by no means the only place. It is not even a typical place.

A book is proof that humans are capable of working magic.

When you make the finding yourself - even if you're the last person on Earth to see the light - you'll never forget it.

All inquiries carry with them some element of risk.