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.

Some of the most fun people I know are scientists.

Sciences provide an understanding of a universal experience, Arts are a universal understanding of a personal experience... they are both a part of us and a manifestation of the same thing... the arts and sciences are avatars of human creativity

You have the right to be involved. You have something important to contribute, and you have to take the risk to contribute it.

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

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

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.