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

My parents were comfortable with me exploring areas that they were not proficient in. Some parents just aren't comfortable with that.

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

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

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.

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.

What we find is that if you have a goal that is very, very far out, and you approach it in little steps, you start to get there faster. Your mind opens up to the possibilities.