We look at science as something very elite, which only a few people can learn. That's just not true. You just have to start early and give kids a foundation. Kids live up, or down, to expectations.

Some of the most fun people I know are scientists.

As an astronaut, you have a very defined set of tasks to do. Those tasks may require you to work 60, 70 or 80 hours a week.

I wanted to be a professional dancer for a period of time, and I did a lot of dancing and choreography and got paid for it.

People always think of technology as something having silicon in it. But a pencil is technology. Any language is technology. Technology is a tool we use to accomplish a particular task and when one talks about appropriate technology in developing countries, appropriate may mean anything from fire to solar electricity.

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

Science provides an understanding of a universal experience, and arts provides a universal understanding of a personal experience.