Being a father teaches you very quickly that you are not the center of your own universe. That’s one of the gifts of having to wipe poop!

There is nothing more important to me than my children and focusing on them. It’s the quality of time with my children, not the quantity of time that I’ve found to be important.

My daughters are something, and they just surprise and enchant and impress me more and more every single day as they grow up. And so these days, when we talk, we talk as parent to child, but also we learn from them.

My greatest joy as a father is to see our children growing up and growing independent, and becoming brilliant ... But also every now and then needing me for something and remembering where I can fit into the world. And one of the great joys you realize is that you need them ... You work for their smile. You work for their joy.

No. I think all of us had such confidence in the technology that it was not a question. It was just a question of scheduling and a question of the funds to do it. I think one has to have that kind of an attitude, particularly when you are involved in research and development. You’ve got to believe it’s going to be done eventually.

Oh, absolutely. I was delighted when I was assigned command of the first Gemini flight with Tom Stafford as my co-pilot, but it was shortly after that I developed a disorientation problem in my ear, and NASA grounded me. I was grounded for almost six years.

We worked with the engineers in the design and construction and testing phases in those various areas, then we would get back together at the end of the week and brief each other as to what had gone on. So even though we were there competing with each other for the first ride, we were still acting as a team, and helping each other in those days.

I would say that they have to know deep down inside that it’s something that they really want to do, themselves. It’s not to please mommy or daddy, not to please Uncle Harry because he did this, or daddy did that. It has to be because you know you are qualified to do it, and if you apply yourself, you can do it.

That’s always been a good lesson to me that you’ve got to do the very best you can all the time. Now, you can’t always do that. But you can recognize when you’re goofing off, and get back on track.

I didn’t like it at all. This problem is called Meniere’s syndrome. It causes dizziness, nausea, lack of balance and so on. The prediction was that in some cases it was correctable. I said, “In my case it is going to be correctable.”