I think there are plenty of men out there who are capable and accomplished in their own realm. You don't have to be in the same field. I've often been asked, "Didn't you want to get married?" And of course I wanted to get married, but you have to fall in love and want to marry a particular person. You don't get married in the abstract. So, although there were people I felt I might have married, it just never happened.

I studied piano from the age of three. My grandmother taught piano. I stayed at her house during the day while my parents worked. I obviously wanted to learn to play. And so she asked if she could teach me, and my mother said don't you think she's too young. My grandmother apparently said no. So I could read music before I could read, and I really don't remember learning to read music. So for me it's like a native language. When I look at a sheet of music, it just makes sense.

Most days are not overwhelmingly successful in your life. And what really marks whether you're going to be successful is how well you deal with the bad days, not how well you deal with the good ones.

You will make a difference in the world, but not immediately. Your first obligation is to find something you like doing, because if you like doing it, you'll do it well.

We know that there are unaccounted-for Scud and other ballistic missiles in Iraq. And part of the problem is that, since 1998, there has been no way to even get minimal information about those programs except through intelligence means.

When I went off to college, I was expecting to be a concert musician. In music school I heard all of these kids who were just unbelievable. And I understand that you can be very, very good, but there's something that separates very, very good from great, and I knew that I wasn't great.

When you have big historic changes, there are going to be ups and downs... There are going to be peaks and valleys. Some things are going to go right. Some things are going to go wrong. But as long as the strategic direction is going in the right way, that's really what you have to judge.