I don't know what you could say about a day in which you have seen four beautiful sunsets.

We want to explore. We’re curious people. Look back over history, people have put their lives at stake to go out and explore … We believe in what we’re doing. Now it’s time to go.

Across the sea of space, the stars are other suns.

A Chinese tale tells of some men sent to harm a young girl who, upon seeing her beauty, become her protectors rather than her violators. That's how I felt seeing the Earth for the first time. I could not help but love and cherish her.

Curious that we spend more time congratulating people who have succeeded than encouraging people who have not.