You have to find things that are accessible and doable in your busy life and try to fit some time in your schedule to just have time to yourself and be able to recoup and refocus.

Find something you enjoy and love and you're passionate about. And then dedicate all you've got to make it a success. And if you have those two things, I think with your passion and dedication, there is nothing that you cannot accomplish.

I don't like to just have a repetitive life where I do the same thing over and over. I love to be able to learn something new, explore something new.

It is a very naive view to think that the resources and conditions on earth would last forever. Our race has to take necessary steps to be able to develop the technology necessary to live on other planets and moons and to reach to farther corners of the galaxy.

I believe seeing earth a small blue ball in the vast dark ocean of space, gives you a new perspective on life and what is important. You can see how small we are as compared to the universe and how fragile our lives are.

Having a really good partner, whether it's a good friend, someone in your family or a spouse, is always the greatest thing to have when you have a new challenge that you're facing.

One of the things I do when I'm very stressed out and I can't get out and I need to do something, I just close my eyes and try to remember what it was like to be in space and to float around. And that sort of brings back all of those good sensations and good memories, and it helps me to get through the day.