It's always great when you want scientific fact to get a really good science fiction writer to talk to you about it.

Women are wonderful. They're amazing creatures. You can never learn enough! They're addicting in the most amazing sense.

I love to ride my bike, which is great aerobics, but also just a great time for me to think, so it's like this terrific double bill.

Change is not popular; we are creatures of habit as human beings. 'I want it to be the way it was.' But if you continue the way it was there will be no 'is.'

My favorite is when you go to Afghanistan and you meet the special forces guys, and they look like these heavily armed surfers. These guys are the best. You see guys dressed as full Afghans, but then wearing a Yankees hat.

People say that I'm a tree hugger, but I do a lot more than hug trees. I like having my drinking water without faecal matter, that's really nice. Or acceptable levels of strychnine. I'm an air breather, I've gotten used to that over the years.

Women have so many levels. There's the physical level, which is a lot of fun. There's this emotional level, which is extremely mercurial.