Once I got into space, I was feeling very comfortable in the universe. I felt like I had a right to be anywhere in this universe, that I belonged here as much as any speck of stardust, any comet, any planet.

Some of the most fun people I know are scientists.

Never be limited by other people's limited imaginations.

The arts and sciences are avatars of human creativity.

When God made the color purple, God was just showing off.

Don't let anyone rob you of your imagination, your creativity, or your curiosity. It's your place in the world; it's your life. Go on and do all you can with it, and make it the life you want to live.

Never limit yourself because of others' limited imagination; never limit others because of your own limited imagination.