"I've always been a bit of a space geek. I wrote an article years ago about the neutral buoyancy tank..." — Mary Roach

Weightlessness was unbelievable. It's physical euphoria: Nothing about you has any weight. You don't realize that you are weighed down all the time by yourself, and your organs, and your head. Your arms weigh down your shoulders. In space simulation, you get to fly like Superman! You're hanging in the air! It's the coolest thing.

Every now and then, someone will tell me that one of my books has made them laugh out loud. I never believe them because: a.) my books don't make me laugh out loud; and b.) sometimes I have said this to a writer, when really what I meant was, 'Your book made me smile appreciatively.'

Pet foods come in a variety of flavors because that's what humans like, and we assume our pets like what we like. We're wrong.

I don't read good books anymore, it seems; I just buy them and put them on the shelf and every now and then walk over and pet them. I'm like the optimistic dieter who fills her closet with clothes two sizes too small and dreams of the day she can wear them. I know just what I want to do when I retire.