Do your homework in advance about the actual travel details so transportation issues do not define your holiday.

Spaceflight isn't just about doing experiments, it's about an extension of human culture.

Our role is to develop techniques that allow us to provide emergency life-saving procedures to injured patients in an extreme, remote environment without the presence of a physician.

Don't let life randomly kick you into the adult you don't want to become

Almost everything worthwhile carries with it some sort of risk.

Decide in your heart of hearts what really excites and challenges you, and start moving your life in that direction

Every single day you're the result of what you did on the days prior.

Focus on the journey, not on arriving at a certain destination.

Remember, nobody changes the world on their own.

Every decision you make, from what you eat to what you do with your time tonight, turns you into who you are tomorrow and the day after that.

The cool things about space is when you put your pants on here, you can put them on two legs at a time.

Criticism addressed to a person can only be of benefit if it was said in the right way and at the right time.

I am in you and you in me, mutual in divine love.

To me a book is a message from the gods to mankind; or, if not, should never be published at all.

He that has done you a kindness will be more ready to do you another, than he whom you yourself have obliged.

The child as a monument to the passion of two people; the will to oneness in two.

The people will learn to feel the dignity of man. They will not merely demand their rights, which have been trampled in the dust, but themselves will take them - make them their own.

The chickadee and nuthatch are more inspiring society than statesmen and philosophers, and we shall return to these last as to more vulgar companions.

I'm responsible for a hundred thousand people across Australia as well and I want to keep them gainfully employed. I want to give them opportunity to grow, I want to give them opportunity to develop.

I can't believe I've been doing it so long. In the last three or four years, I've slowed down. I'm doing only the roles I really want to do.

I believe the day is done. Whether it's been the best day or the worst, it's over; let it go.